I don't own Kamen Rider and Strike the Blood

'Ten years ago, Japan became the first country to send a manned probe to Mars successfully. In what appeared to be the ruins of an extinct Martian civilization, an astronaut discovered a mysterious cube, which would come to be known as the Paradox Box. At the return ceremony for the expedition, one of the security guards suddenly rushed forward for the Paradox Box. As he touched the artifact, a flash of light erupted, and monsters appeared out of the box we called them Apex. a monster who appeared like animals but they suck human blood like vampires until the animal's lords known as Animalia League came to stop the catastrophe.'

The scene shows the Japanese spacecraft headed toward Mars then the space pods perfectly landed. The next scene shows an astronaut walking on Mars and finding an ancient temple on Mars. The astronaut found a mysterious cube that was almost the age 10,000 BC and accidentally opened the box and the light erupted from the box. After landing on earth, everyone including the government celebrates their return from Mar. The government announced his speech to his scientist and engineer colleagues for making history by finding the old box made by the alien civilization.

While the government still announcing his speech, one of the security guards rushed forward to the Paradox Box which surprised the government and the colleagues. The other security guard tried to stop him but he touched the artifact the light flashed erupted then a monster came out from the box roared and started biting the human's neck to drink blood which horrified all the colleagues and the government of their appearance. They look like animals: one looks like grasshoppers and the others are like spiders, lizards, and birds. The animal's lords also came out from the box and stop the Apex rampage.


(Present)

"That became a Nightmare, The tragedy of that box released those monsters and Animalia League has not been found for ten years, all the Animalia League has disappeared without any trace of their track, no footprints, no nothing," said the scientist who was interviewed by a reporter who's a beautiful woman with black hair and gray eyes.

"Please tell me why those so-called Animalia League came to stop the catastrophe?" the reporter asked

"I don't know much of the details but I heard story's that Animalia League is the ancestor or guardian deity to protect the earth from evil threats for 10,000 centuries I heard another story about one of the heroes who can hold all the animal's powers and they call them Kamen Rider. The Kamen Rider are heroes who step in and stops the Apex and the ones who can stop the war" said the scientist

"Kamen Rider?" the reporter muttered in thought

"But anywhere I started realized how cute you are so would you like to go out for dinner," said the scientist lustfully until the reporter kick the scientist's groin and the scientist hold his crotch and knee in pain.

"Ew, you disgusting pervert," said the reporter with disgusted


(At Night)

"What a pervert, what was he thinking?" said the reporter talking on the phone

"Huh?" said the reporter

"What do you mean he asking me out for dinner I'm not interested in guys Mr. Editor in Chief!?" said the reporter and hung up on him. She was annoyed so she starts walking toward her apartment but she accidentally bumps into someone and drops her purse. The reporter was about to apologize and see a monster that appeared to be a spider with four legs on his back with purple assets

"Apex?" said the reporter in shock and she was about to record on her camera but the Apex knocked her out with one swing. The Spider Apex was walking close to her and was about to bite her neck until something tapped his shoulder.

"Excuse me," said the mystery person. The Spider Apex turned around but the black armor figure punched the Apex in the face which strumbled the Apex then the armored figure grabbed his sword and slash the Spider Apex. The scene shows The armored figure's visor is like bat wings then the scene cuts to The armored figure parrying the Apex's attack and countering it with a kick then parried Apex's attack again and punches the Spider Apex to the chest.

The scene shows the armored figure's head resemble as a cobra. The armored figure grabs three of the metals, inserts them into the sword, grabs what looks like a scanner, and scans the three medals in the sword.

"Scanning Sword Charge!" said the Scanner then the sword is covered by a black and purple aura and the armored figure readied his sword.

"KOBADA Slashing Break!"

The Spider Apex roared and charged toward the armored figure and the armored figure slashed the Apex horizontally. The Spider Apex roared in pain and explode before the armored figure grab the empty metal and throw it at where the Spider Apex is at and absorb something from Apex particles and then returned it to the armored figure next, the figure stared at the extracted medal.

The reporter recovered from the attack and stared at the armored figure with awe. The armored figure turned toward the reporter and stared at her with yellow visors.

"Kamen Rider?" the reporter muttered and the armored figure continue to stare at the reporter. Next, the scene changes to the title of the story scene.


Kamen Rider Progenitor


(The next day)

The young boy with fair healthy, shaggy ice blue hair, and looks around to be around 17 years old, his name is Ryuko Kamikawa. Ryuko falls asleep in his father's science lab, dreaming of his past, and reminisces his father's final moments before passing away.

He was having a nice sleep until someone whack Ryuko on the head multiple times making Ryuko woke up and hold his head in pain. Ryuko opened his eyes showing teal eyes.

"Rise and Shine sleepy head," said the mystery figure

"Man, this sucks can I at least get some nice beauty sleep? I've been up all night finding what kind of animal I just extracted," said Ryuko annoyed

"Come on Ryuko, we don't have time for fun and games of your science project," said the figure

"You the one to ask Kibbe," said Ryuko and the mystery figure appeared out of the shadow who appeared to be black and purple Animalia League resemble a cobra on the head, the bat on the middle section with bat wings on his shoulder, and the spider on his legs with four legs appear out each leg. Next, the machine processed successfully which automatically opens the door and makes Ryuko excited and check on the new medal he extracted last night. The color of the medal is green and shows the image of the grasshopper.

"This is awesome," said Ryuko with a star on his eye

"So this is a new medal you extract last night," said Kibbe analyzing.

"Do you know what it is?" Ryuko asked cheerfully showing the medal to the Black Animalia.

"How the hell am I supposed to know," said Kibbe

"That's a Batta," said another figure which Ryuko and Kibbe turned toward the figure. The figure is a green female Animalia League that resembles a kabuto on her head, the stag beetle on her mid-section with stag beetle mandibles on her shoulder, and the grasshopper on her legs.

"One of the insects who can jump," said the green Animalia League.

"Oh hey Kakon," said Ryuko

"Hello Darling Boy, how was your sleep," said Kakon

"You know, stay up too late, doing some research, and examining the DNA I extract from yesterday," said Ryuko

"Kakon, why are you here, are you supposed to be in the garden," said Kibbe annoyed

"My plants are fine and healthy, thank you very much," said Kakon annoyed then turned toward Ryuko

"Anyway Ryuko, isn't it time for you to go to school," said Kakon which horrified Ryuko

"Oh no, I'm going to be late, why didn't you guys wake me up sooner," said Ryuko horrified then try to find his stuff for school

"Look, we tried to wake you up, but you keep thinking about the experiments you extracted and your father's passion dreams," said Kibbe comedic hesitant

"God, I'm going to be late, my teacher hates me when I'm late," said Ryuko horrified and anxious, and then he put on his black trench coat and rushed out of his father's laboratory.

"See you guys later, my teacher is going to kill me" Ryuko yelled horrified

"Man that kid sure is a quick one, isn't he," said Kakon

"But he still one of us, he lost everything after his father passed and we the Animalia League are the only ones who Ryuko called us: Family," said Kibbe saddened

"Yeah, that brings me back memories," said Kakon saddened


(Meanwhile)

Ryuko was running toward his school and when he checked his watch and he knows it was almost time for class to start

"Oh man, I'm going to be late," said Ryuko comedic horrified, and grab his phone that has the slot on the end, Ryuko pulled out his medal revealed to be a Cheetah medal, and Ryuko inserted the medal into his phone.

"Cheetah," said the phone then the phone transformed into a Black Golden Wing Tour motorcycle with purple assets and a medal slot from the back. Ryuko hops on and put on his helmet to resemble a cobra and drives toward his school but unknown to him, a beautiful young female was spying on him and she starts following him.


(At the restaurant)

After arriving at school on time, Ryuko now wearing a Saikai Academy uniform was laying his head on the table in relief

"Man I made it to class, I thought I was a goner for a sec," said Ryuko lifting his head

"You were lucky that the teacher is not around to start or else you going to do all that make-up exam for your tardiness," said the boy who has swept-back blonde and gray eyes. His name is Yusuke Banjou, one of Ryuko's childhood friends.

"Yeah and I hate that I have to do all of the make-up exams for being late by her," said Ryuko dropping his head.

"That's because you being unable to come in the morning a condition," said the female classmate which the two males turned

"It's not like you're a vampire or something," said the female with chestnut blonde hair and emerald eyes, which makes Ryuko hesitant. her name is Yuzu Sato, one of Ryuko's childhood friends.

"Right..." said Ryuko hesitant then dropped his head.

"But anyway I'm glad that you make it to class on time because one day you skipped school and you were punished by our teacher," said Yuzu

"I was doing my research on animal DNA, thank you very much," said Ryuko

"You and your research, you are so you," said Yuzu

"Hey it's not my fault I have to be late, my guardian didn't wake me up," said Ryuko annoyed which Yuunosuke and Yuzu sighed then Yuzu look at her phone and it was time.

"Oh it's time, I have to go to work, so I'm heading off," said Yuzu

"I'm also heading out as well," said Yusuke. Ryuko lifted his head with confusion on his face.

"I already finished my homework with Yuzu, without her, there's no point studying here, anyway," said Yusuke getting off his seat while Ryuko watched them getting off their seat.

"But thanks anyway for the food," said Yusuke

"Yeah, thank you Ryuko," said Yuzu then she and Yusuke headed out

"Ah, no problem," said Ryuko then watching them leave

"Ah man," said Ryuko whined then drop his head.


(Later)

Ryuko was leaving the restaurant after finishing up his homework and his lunch. He checks his wallet and sees he didn't get enough change.

"Damn, now can't go to monorail without any change," said Ryuko with disappointment and put his wallet away

"Great, without my change how am I supposed to return home, I don't want to use my phone, it won't cool down until the next hour," said Ryuko then walking back home. While Ryuko was walking, he regret having his coat on during summer break

"Hot, so hot, I regret wearing the coat during summer break," said Ryuko regretfully and unknown to him, the young girl from earlier spying on him and following his trail.

Ryuko looked through the window to see the expensive cake but was disappointed because he didn't have any change to buy for dinner.

"Great, no dessert for today," said Ryuko disappointed. Next, he saw the reflection in the window and saw someone is spying on him but to his confusion, when he turned around to where the reflection is located but no one is there.

Ryuko shrugged it off and walk away. While he was walking away, he thinks no one is there but the girl was hiding so she won't get spotted by him and then she followed him quietly.

Ryuko knew someone is following him so he gets very annoyed and walked away while the girl is following Ryuko.


(At the mall)

Ryuko was walking but the girl was still on his tail

'Am I being followed' Ryuko thought annoyed and then Ryuko ran as far as he could, the girl also ran to catch him but she saw Ryuko heading to the game store which confused the girl?

Ryuko hid near the shelf and examined the girl that was in front of the entrance.

'That uniform...Is she a middle school student? I think that uniform is from Saikai Academy' Ryuko thought and saw the girl blocking the entrance and moving the side for the customer to enter.

"Looks like I have no choice then," said Ryuko

The girl showed no hesitation and started walking toward the entrance but Ryuko was exiting the game store when the two stumble each other and they meet eye to eye. the girl has fair healthy skin, green ponytail hair, and golden eyes. She wearing the Saikai Academy school uniform and a guitar case on her back. The two-step back but the girl readied her battle stance with her guitar case in front of her.

"Fourth Progenitor!" said the girl and that made Ryuko confused. Ryuko looked left and right next look back at the girl with confusion.

"Huh?" said Ryuko in confusion and the girl narrows her eye for any action or escape

Ryuko tried to think about how to deal with the girl until he got the idea

"Oh sorry, I don't understand you, I don't speak Japanese," said Ryuko in English and making the girl confused

"Yeah my dad is Japanese but never speaks and my mom is American but never shuts up. So I don't understand you and Japanese much so I'm just an American passing through" said Ryuko in English

"So If you excuse me, I have to run some errands at my house so goodbye," said Ryuko in English walking away

"Wait a minute, Kojou Akatsuki!" said the girl grabbing his trench coat and Ryuko turn his head at the girl. The girl noticed she grabbed his trench coat and let go of her grip.

"Sorry, my name is not Kojou Akatsuki, you got the wrong guy," said Ryuko, and the girl looked at him with confusion.

"Go find someone else who is Kojou Akatsuki, Alright," said Ryuko with a pretended smile and walked away.

"The wrong guy? How did I get the wrong guy" said the girl in confusion.


(Outside the mall)

Ryuko exited the main mall exit with slight relief.

"Finally, I have to get out of this hellish nightmare I encountered," said Ryuko in relief but stop of his track thinking in his mind.

"But now I think about it, Why is she calling me Kojou Akatsuki, do I look like him or something else," said Ryuko in suspicion. Ryuko was thinking in his mind until someone bump him. Ryuko looks at someone to see the man has dark silver-blue hair and blue eyes. He is usually seen wearing the Saikai Academy school uniform which consists of a white button-up shirt and black pants. He also wears a blue undershirt and a white hoodie. he has fair skin. He has well-toned muscles and a "well-endowed" body. This is Kojou Akatsuki

"Oh sorry I bump into you, I didn't see you there," said Kojou apologetic

"No, it's my fault I just space out," said Ryuko apologetic, and Kojou looked at his uniform and to his surprise, he knows that uniform.

"Wait, you're a Saikai Academy Student," said Kojou in surprise.

"Yeah," said Ryuko in confusion

"I'm also in Saikai Academy," said Kojou in surprise

"Wow, in what class," said Ryuko in surprise

"Class 1-B"

"I'm Class 1-C," said Ryuko pointing to himself.

"Wow, you study next to my class," said Kojou then he realized something.

"Oh sorry to introduce you, My name is Kojou Akatsuki," said Kojou introducing himself

"I'm Ryuko Kamikawa," said Ryuko introducing his name until Kojou

"Wait, Ryuko Kamikawa," said Kojou in surprised

"Yeah that's my name," said Ryuko

"You are the famous scientist that everyone is talking about. You have the best score from the entire class" said Kojou in surprise

"Oh you read about me," said Ryuko in surprise. Kojou was about to ask some more but they heard three guys talking to the two girls and them about the date. Ryuko recognized the girl who called him Kojou Akatsuki. The other girl has shoulder-length dark-brown hair with a fringe around her eyes and bangs on either side of her face and dark golden-brown eyes. she also wears the Saikai Academy uniform and carries around a guitar case around on her back.

"I swear," said Kojou in annoyance

"Why do older guys always have to seduce the middle schooler," said Ryuko in annoyance

"Yeah, those guys can be a hunk of trouble when they mess with them," said Kojou starting to walk away and Ryuko walk away as well

"Hey, what's your name pretty girl? What school are you from?" said one of the man

"I'm sorry. I'm in a hurry" said the brown hair girl and that made Kojou and Ryuko stop in their tracks. Both males turned to the two guys and two girls with annoyance until they both look at the two guys' wrists and they have bracelets.

"Demon registration bands," said Kojou surprised and Ryuko is also surprised

"If you're bored, hang out with us," said one of the men blocking both two girls' way.

"I just got paid, so I have plenty of cash." said the Hawaiian shirt man

"Please step aside," said the brown hair girl

"Please we don't have time for this," said the green-haired girl

"Oh, you're cute when you're mad, too! That makes me want to see what you look like when you're crying..." said one of the men and made the two girls disgusting.

"Excuse us." said the brown hair girl and two girls walk past them.

"I'll tell you to shut up and come with us bitch" said one of the men grabbing the brown hair girl's arm

"Bastard!" said Kojou angrily and run very fast which make Ryuko surprised by his speed.

"Drop the attitude!" said the Hawaiian-shirted man flipping the two girls' skirts with his hand revealing the girl's panties. the brown hair girl has pink panties and the green hair girl has blue panties. The two girls blush with disgust. The brown hair girl starts her first move and her palm strike the man behind her and her elbow strikes his face.

"Why you little," said the Hawaiian shirt man about to attack but the brown girl

"Young Lighting," the brown-haired girl commanded palm striking at the Hawaiian shirt man making the force push the man right past Kojou, and Ryuko next hit the light pole which make his appearance as the therianthrope.

'Is he a therianthrope?' Kojou and Ryuko thought.

'And she sent him flying? She must be.' Kojou thought

"Why you little bitch" said the other guy wearing a beanie holding the baseball bat but the green hair girl appeared in front of him and palm strike to the man's chest which send him flying.

"Are you both battle mage?" said one of the men who recovered from her attack and the beanie-wearing man also recovering from the green girl's attack. the two girls stop their tracks and are surprised by their appearance both men are vampires.

'He's a D type! A vampire of all things?!' Kojou thought in surprise

"To run into a D type in town in broad daylight...This is called Itogami Island" said the brown-haired girl. The two vampires show a sadistic smile, and one of the men covers his leg black with red vein asset and the other man covers his left arm with black and shows the red symbol of the snake then the magic aura erupted out of the two men.

Kojou and Ryuko watched the fight between two vampires and two girls. Next, the magic aura changes the form into a horse-like beast with purple flames on the mane, the back, and the hooves. The next magic aura changes the form into a pit viper-like beast with medal horns on the beast's head.

"He's using a Familiar in a place like this?" said the brown hair girl

"This is unacceptable," said the green hair girl

The two familiars landed behind their master.

"Now I won't forgive both of you even if you cry"

"We don't need your forgiveness," said the brown hair girl grabbing the weapon that slid out of the guitar case.

"And we don't need to cry either," said the green hair girl also grabbing the weapon that slid out of the guitar case.

"Schneewalzer!" the brown hair girl declared and the weapon transform into a lance.

"Night Swan!" the green hair girl declared and the weapon transform into the katana.

The two vampires weren't impressed by the weapons the two girls are holding.

"What do you both expect to do with a puny lance and katana like that?" the blonde-haired man asked unsatisfied but the two girls didn't answer and they readied their weapons.

"Shakutei, Get Her," the blonde hair man commanded

"Kurokiba, Get that bitch" the beanie man commanded

The two familiars charged toward the two girls and the two girls charged toward them. The brown hair girl deals with the horse-like familiar and the green hair girl deals with the pit viper-like familiar. the brown hair girl swipes her lance at the horse familiar but the horse familiar flew up in the sky and charges at her again. Next, the brown hair stabs the horse's familiar face and nullifies the horse's familiar which explodes and turns the familiar back into flames. The blonde hair man covers himself from the force and is shocked that the brown hair defeats his familiar

"It can't be...She eliminated my familiar so easily..." said the blonde hair man

The pit viper-like familiar starts to bite the green hair but she easily dodges the familiar attacks and easily slashes the familiar head showing the decapitated body laying on the ground making the beanie man shocked at the green hair girl defeat his familiar but smirks because he knows what it's going to happen. the green hair girl turned toward the blonde-haired man but unknown to her the headless familiar started to regenerate its head.

The brown hair girl starts charging toward him and is about to strike the blonde hair man but Kojou came on time and stops the brown hair girl lance with his bare hands making the twos girl shocked by Kojou's interference.

"Kojou Akatsuki," said the brown hair girl and leap backward and land on top of the van.

"Hey, take your buddy and get out of here," said Kojou, and the blonde hair man look at Kojou

"If you learned anything from this, never hit on middle school girls again. Or use Familiar in the middle of town" said Kojou with a warning.

"R-Right, sorry. I own you one" said the blonde-haired man and flee but the beanie man is not satisfied.

"You who ask you to give me order, no mere human can tell me what to do," said the beanie man. the familiar recovered from the wound and slowly rose.

"Go Kurokiba, get that girl, she's mine," said the beanie man pointing at the green-haired girl with a psychopathic laugh, and then the familiar appeared behind the green hair girl making the brown hair girl look at her companion

"Hey watch out," said Kojou trying to save her by she was far and the green hair girl looked behind to see the pit viper familiar was looking at her and about to strike.

Ryuko grabs his phone and his medal which resembles a cobra then he inserts the medal into the phone.

"Cobra!" the phone declared. Ryuko pressed the beast icon on his phone then the black flames appeared out of the phone and formed into a black mechanical cobra with yellow batwing-like eyes and starts charging toward the pit-viper familiar and biting the familiar neck which shocked Kojou and the two girls. The black mechanical cobra dragged the viper familiar and throw the familiar, next the mechanical cobra circled the familiar until he get higher, and the cobra bit the pit viper familiar head and swallow it whole. Kojou and the two girls are amazed by the familiar easily defeated by the mechanical cobra.

Ryuko removes the cobra medal from his phone.

"Thank You!" said the phone and the mechanical cobra disappeared peacefully which make Kojou and the two girls shocked at where the mechanical cobra go.

"NO, How is that even possible," said the beanie man dropping his knees

"Hey, you the one with a beanie pervert," said Ryuko making the beanie man turn towards him

"You better learn your lesson on this, never picking on middle school girls and using Familiars in public, do that one more time things will get worst between you and me," said Ryuko in a threatening mode.

"R-Right, sorry about that," said the beanie man

"Oh Geez, what a geezer," said Ryuko in disgust and look to see Kojou talking to the two girls, they were talking, and the wind blew on the two girl's skirts revealing their underwear, and Kojou watched but they didn't know Ryuko is also watching. After their conversation, the girls left in disgust, and Kojou look at the two wallets that the two girls left.

"Looks like they forgot their wallets," said Ryuko grabbing one of the wallets out of Kojou's hand and looking at the one of the girl's wallet

"Yeah, looks like it," said Kojou agreed and look back at the girl's wallets

"Class 3-C...Yukina Himeragi" Kojou read the ID from the wallet.

"Class 2-B...Mirei Kanzaki" Ryuko read the ID from the wallet.

"Well, I advise you to give them back because you are the one who found them first so you have to return them," said Ryuko handing the wallet back to Kojou who grabbed it.

"Wait, what about you? You the one who looks at it" said Kojou

"I like to but I have some errands I need to do back at my house," said Ryuko denied

"Oh I see so I going to see you at school tomorrow if we meet eye to eye," said Kojou

"Yeah but I feel like we do going to see eye to eye and anyway see you tomorrow probably at lunchtime," said Ryuko

"Yeah," said Kojou with a smile making Ryuko close his eyes and smile.

"Ciao," said Ryuko waving his goodbye and then turning in the opposite direction while Kojou watched him leave.


(At night)

'This is Itogami Island, an island located in the Pacific Ocean 300 kilometers south of Tokyo, constructed of carbon fiber, resin, metal, and magic. Also known as the Demon District. On this manmade island, built far from the Japanese mainland, therianthropes, spirits, half-demons, manmade life-forms, and vampires...All manner of magical beings pushed to the brink of extinction by the destruction of natural habitat and battles with humans, are authorized by the government to live here for protection and research purposes.' Ryuko narrated while walking

'And now after a few years, the creatures known as Apex came to Earth and bring all humanity and creature to extinct' Ryuko

'I, Ryuko Kamikawa, am a normal high school student living on this island. Yes...I was a normal high school student, until five months ago.' Ryuko narrated. Next, Ryuko saw the basketball and looked at it

"Why is that girl calling me Fourth Progenitor," said Ryuko

"Mirei Kanzaki...what a weird girl," said Ryuko and throw the basketball then made it to the hoop.


(Meanwhile)

The guy from the previous afternoon wearing a beanie was sniffing on the girl's underwear with satisfaction but he didn't notice someone is watching him. The figure landed right in front of him making the beanie guy flinch and then start to show fear of the figure's appearance. The figure's appearance shows the semblances of scorpion and rattlesnake grabbing the medal with blood veins assets showing the picture of praying mantis and insert it to the beanie man chest which makes the beanie man scream of agony and transforms into a wendigo like bone creature with vampire fangs.

"Rise my servant and get back our medals," said the unknown figure

"As you wish," said The Apex monster with a nod, and the unknown figure vanished without a trace. Next, the Apex walks toward the alleyway to find the medals his master wants.


(Next noon)

Ryuko was laying on the table feeling a little tired from sleep and experiments while Kibbe and Kakon are eating their lunch made by another Animalia League a yellow female resembling a jaguar on her head with blonde hair, the cougar on her chest, and a cheetah on her legs with spots. Her name is Isa.

"What's wrong Ryuko, you not feeling so well," said Kakon in worry

"No, I just feeling a little tired that's all," said Ryuko sleepily

"That what you get for staying up too late for your experiment," said Kibbe

"It's not that, I have so many make-up exams from my teacher that I skipped for my experiment," said Ryuko sleepily

"It's not that bad to get make-up exams unless you didn't have to get a punishment to clean the pool," said Isa

"That will be even worse, but much more is get detention for a whole year," said Ryuko groaning

"Hey don't be depressed, Ryuko, you have a reason to skip because someday there's going to be danger around on this island and we don't have enough power to stop that catastrophe including those Apexes that we can't prevent to seal them away," said Kibbe

"Yeah, it's been 12 twelve years," said Ryuko and he realized something.

"Oh hey, Isa and Kakon, I forgot to ask you about this medal I extracted from last year," said Ryuko showing two medals one is green showing an image of a Japanese rhinoceros beetle and the other one is yellow showing a cheetah.

"That's a Japanese rhinoceros beetle aka Kabuto. A beetle with a curved horn extending from the head" Kakon explained.

"That's a Cheetah, a large spotted feline with the fastest speed" Isa explained

"Nice," said Ryuko looking at the two medals.

"But anyway...did you say you have a job interview," said Kibbe making Ryuko get up and look at his watch, and to horror, he's going to be late again.

"Again, why didn't you tell me sooner," said Ryuko grabbing his coat and running to the exit.

"That kid," said Kibbe smiling.


(At the Itogami Institute of Advanced Science)

"So you got all the questions right..." said the head of government who's a 32 years old man with black hair, a black mustache, and a beard wearing the formal suit with the Itogami science robe. His name is Fujimoto Matsuyama.

"Impressive. But under experience, you only wrote "unofficial physicist." said Fujimoto reading the clipboard and handing it to his assistant who's a female with glasses and teal-turquoise hair also wearing the Itogami science robe.

"I've got amnesia," said Ryuko indifferently

"No way," said Fujimoto in surprised

"Alright. What I want you to do...is analyze this," said Fujimoto showing Ryuko the picture of the Cube artifact which is the Paradox Box.


(At where the Paradox Box is held)

"The Paradox Box was discovered on Mars. It's said to be a better energy source than atomic energy." Fujimoto explained as Ryuko still looked at the Paradox Box with a star in his eyes.

"That's amazing," said Ryuko with amazed

"To think that a civilization existed...far more advanced and AP than humanity," said Ryuko amazed with stars in his eyes.

"And the tragedy of the monster's Apex?" said Fujimoto

"I read about it," said Ryuko

"After the return to Mars..." said Fujimoto telling the story 12 years ago.


(Flashback, 12 years ago)

The event of the Apex tragedy starts when the government still announcing his speech, one of the security guards rushed forward to the Paradox Box which surprised the government and the colleagues. The other security guard tried to stop him but he touched the artifact the light flashed erupted then a monster came out from the box roared and started biting the human's neck to drink blood.

"Paradox Box started to glow and awaken the Apex. They suck humans' blood like vampires and turned into animals like creatures" said Fujimoto

"Not only the Apex, Everyone at the event was effect by the light," said Fujimoto

The scene shows the two governments including Fujimoto affected by the light.

"They become warlike," said Fujimoto


(Present)

"And now we are divided into three organizations and fighting over this energy," said Fujimoto until the phone ringed which Fujimoto pick up

"Hello, yeah hold on," said Fujimoto, and hold

"We'll come back to discuss more later," said Fujimoto and starts walking away while talking to the phone.

"Ok," said Ryuko and returned to looking at the Paradox Box with again star in his eyes.


(Meanwhile)

Ryuko was riding his motorcycle peacefully and then his phone rang on the screen making Ryuko pick it up by pressing the phone app.

"Hello," Ryuko answered

"Ryuko, we sense the Apex from your area, I'm sending you a GPS and it feels like three humans are fighting Apex," said Kibbe then Ryuko's motorcycle screen appears the location of the Apex

"On it but I have to hurry, those people don't know what they facing," said Ryuko

"Yeah, humans with stubborn brains never think but use force," said Kibbe

"Yeah," said Ryuko turn his motorcycle around and headed straight to the Apex location at fast speed.


(A few minutes earlier)

Kojou and the two girls: Yukina and Mirei are at the burger restaurant discussing why Kojou become a Fourth Progenitor but every time he tried to remember it gets him a headache until they heard screams from outside which confused Kojou and the two girls.

When they got out and to their horror. They witness a creature biting the woman's neck while blood is dripping to the ground. The creature none other than Apex finishes drinking blood, The Apex stared at the three standing right in front of him. the Apex roared at them and charge toward his prey but it was stopped when Mirei slashed with her katana and the Apex jumped back.

"You two stand back I will deal with this monster," said Mirei and dashed toward the Apex.

"Wait, Mirei we don't know what kind of being that is," said Yukina in worry The green-haired girl slashed the Apex but the monster easily evades until The Apex slashes Mirei which she blocked and slashes the creature to her surprise, The Apex shows no pain and was healed. Next, The Apex roared and the light erupted from him making Mirei, Kojou, and Yukina cover their eyes. After the light faded, Mirei, Kojou, and Yukina look at the Apex spot, and to their shock the creature's appearance is different. The Apex's appearance resembles the humanoid praying mantis with a scythe blade in his hand. This is Kamakiri Apex.

The Apex roared at the three and charge his scythe with energy next throws an energy blade projectile at them making them dodge the projectiles. Mirei reader her katana and Yukina unzips her guitar case revealing her lance and both two girls charge toward the Apex.

The Kamakiri Apex readied his scythe as the monster charged toward the two girls. Mirei strike first but The Kamakiri parried it with his scythe and kicked her. The Apex parried Yukina Lance until he grab the handle with his scythe and throws it toward Kojou which Kojou caught her.

Mirei recovered and was about to slash but the Kamakiri Apex dodge her attack and slash her with his scythe causing her to scream in pain and lay on the ground as the blood puddled to where

"Mirei," said Yukina in worry trying to save her friend but Kojou stop her from doing it.

'Is this it, is this going to be my end, I have failed you, and I have failed you as well Yukina it's a nice team-up with you, forgive me brother' Mirei thought and closed her with tears for her final moment.

"Cobra!" the phone declared and the black mechanical cobra bite the Kamakiri Apex to move the creature away from the wounded Mirei which shocks the three because they know that snake then the cobra changed into black flames and return to his master with the three follow to where it returns and to their surprise its Ryuko on his motorcycle

"Man, you guys are a bunch of idiots," said Ryuko removing his helmet and getting out of his motorcycle.

"What are you doing here, it's dangerous here that thing will kill you if you stand there," said Yukina

"More like you guys don't know what you facing," said Ryuko which confused the three

"That thing you're facing is one of the most ferocious creatures that suck human blood for their hunger like vampires, those things can do anything in their power to hunger their satisfaction," Ryuko explained

"And those creatures are Apex"

"Apex," said the three in unison and Ryuko go ahead and check on Mirei

"Wow, you're stubborn to think that you can deal with Apex all by yourself even though you don't know how powerful those Apex are," said Ryuko in a teasing tone

"Shut up you idiot," said Mirei frustrated

"More like you an idiot but in a cute way," said Ryuko making Mirei blush from hearing his words "cute". Ryuko got up and stare at the Apex

"I'll take it from here," said Ryuko showing his hand revealing a three-slotted black, red, and blue device and placing it on his waist revealing a yellow belt wrapped around his waist. One side has some kind of black and red scanner with DNA and a vampire fang, and the other side has some kind of Medal container.

Yukina quickly run to Mirei's side and help her get up with Mirei's arm around Yukina and quickly walked away as they were confused about what was on his waist.

Ryuko opens his container revealing three black and purple medals, two green medals, and one yellow medal. Ryuko grabs only the black medals showing a Cobra, Bat, and Spider. Ryuko holds the bat medal and flips it into the air.

"Now, let's test the experiment shall we," said Ryuko before he grabs the Cobra and Spider Medals.

Ryuko then placed the Cobra and Spider Medals in the side slot of the Driver, and he caught the Bat Medal next placed it in the center. The Driver then titled with the Medals glowing with energy. Ryuko grabbed the scanner and place it on his forearms.

"GABUU!"

The vampire fang pierces through Ryuko's forearms which releases the demon and dragon's blood through Ryuko's vein and when he did, Ryuko's appearance starts to change with vampire canine fangs with dragon teeth, his eyes turned red, and tattoos appeared around Ryuko's body. The tattoos look like stained glass, giving out a hypnotic sound. While the sound continues, The three black flames appear out of Ryuko's body revealing the black mechanical cobra on his left, a black and purple mechanical bat on his center, and a black mechanical spider on his right.

Ryuko started at it for a few seconds before scanning them. Each Medal made a chiming noise.

"Henshin!" Ryuko declared.

"Kobura!

"Batto!"

"Supaida!"

"Ko-Ko-Ba, Ko-Ko-Ba, Kobada! The Night Fang of Massacre! Yeahhhh!"

Ryuko becomes surrounded by spinning colored Medals which accompanied the transformation. Images of three medals he was using appeared. Cobra was on top, Bat was in the middle, and Spider was at the bottom. The mechanical cobra circles around Ryuko, The mechanical bat roars at his opponent and flies behind Ryuko next to him with his wings, and the mechanical spider starts to walk toward Ryuko and pounce in front which covers Ryuko a whole body.

The three images combined into a large crest which flew backward and into his chest making the three mechanical animals burst out into parts. his body then became enveloped in energy which swiftly hardened into solid armor including the part that reverted to his body.

The helmet was mainly black, with a black faceplate that look like a cobra with a purple hood spread out. His head has yellow batwing-like visors and cobra fangs. Running from his chin and down his neck was a purple line that was connected to the top portion of his image crest. the torso armor had a rounded shoulder with bat wings covering his shoulders that also have purple lines on them; the lines ran down his arms and into purple gauntlets decorated with bat wings covering his forearms. Lastly, the legs were minimally covered with segments of black armor, not unlike that of spider legs, connected by purple lines to the lower section of the crest.

This was Kamen Rider Progenitor Kobada aka Nocturnal Animalia form.

Progenitor doing the strike pose as he swings his arms sideways and then places his left hand on his hip and pointed his right hand to the side

The Apex growled at the Kamen Rider.

Kojou and the two girls were shocked to see that.

"Progenitor" The Apex spoke for the first time in rage.

"Did the creature just say Progenitor?" said Kojou in shock

"So it's not just one Progenitor on this island," said Yukina

"That's right, but I'm not just a progenitor. I'm a Fifth Progenitor" said Progenitor showing his whole hand as five.

"Fifth Progenitor" Yukina repeated

"Damn it we should have known," said Mirei in frustration.

Progenitor then points to his opponent with two fingers.

"Now, let's complete the debate once and for all!" said Progenitor.

Progenitor readied his combat position as his legs were charged with purple energy as the Spider part glowed. Progenitor jumped making him go further to the Kamakiri Apex. Next, the Kamen Rider punched the Apex which stumbles the creature. The Apex swings his scythe but the Progenitor dodges it easily. The Apex swings against him but still dodges it before he punched the Apex. He then rapidly punches Kamakiri Apex making him stumble back. The Apex charges his scythe with energy and throws energy blade projectiles at Progenitor. His bat part glowed and wings came out from his shoulder making Progenitor fly to the sky and dodge every incoming projectile and fly behind the Apex.

Kojou and the two girls were awed by the Progenitor's power.

Progenitor landed making the wings cover the shoulder back to normal. Next, the three medals make a line together and create a big bladed katana with similar colors to the Progenitor Driver.

Progenitor readied his sword and charged toward the Apex. Progenitor slash the Apex creating a spark and parried every single income attack from the Kamakiri scythe. Progenitor uses the point's tip blade to stab the Apex making him step back in pain.

Progenitor opens his Medal container and grabs the green medal showing a grasshopper on it.

"Alright, let's test this one out," said Progenitor

He placed the Driver in its original position, pull out the Spider Medal, and switched to the Batta Medal.

"Kobura!"

"Batto!

"Batta!"

"Class Change!"

Three images of Cobra, Bat, and Grasshopper appeared and formed into one symbol before going on Progenitor's chest. His head and chest remain the same but the legs change to green armor, not unlike that of a grasshopper's legs.

The Apex roared before charging his scythe with energy and throwing energy blade projectiles at him but the Progenitor charge his leg with green energy. Progenitor easily dodges the projectile with agility and speed by jumping. The Apex is struggling to land a hit on the armored figure and after the apex is frustrated, Progenitor got the chance to land on the Apex and bicycle kick. The Apex rolled on the floor before getting up. Progenitor grabs the Spider Medal.

Progenitor then places the Driver in its original position, pulls out the Batta Medal, and switches to Spider Medal.

"Now for the finished experiment," said Progenitor.

"Kobada! The Night Fang of Massacre! Yeah!"

The Kamakiri Apex readied his beast stance.

Progenitor brought out the scanner and soon scanned on the Driver.

"Scanning Charge!"

"Hang on a sec!" said Progenitor and ran further away from the Apex

"Kobada Vortex Finish!"

Progenitor jumped and turn around toward his opponent. After he landed, the mechanical cobra came out of nowhere before biting the Apex and dragging the Kamakiri in the sky. Progenitor then does the cartwheel and jumps high in the sky with a mechanical spider supporting the armored figure with his webs before doing the backflip. Progenitor soon aimed his legs towards the Apex with the mechanical bat supporting him by using his wings. The mechanical cobra let go of the Apex. Next, when it collided with its chest, the Apex kept moving backward back until it was forced onto the floor. When the Apex collided, the creatures roared in pain, and Progenitor pierce through the Kamakirir Apex making it Apex explode with particles.

Progenitor grabs the empty medal and throws it behind him and absorbs something from Apex particles and then returned it to the armored figure next, the figure stared at the extracted medal.

"Alright," said Progenitor, and look where the Kamakiri Apex is at, and to his disappointment, it was the beanie man completely naked who had bruises and cuts on his body.

"This guy never learned a thing or two," said Progenitor placing the Driver in its original position, and the stone formed around Progenitor and reverted into Ryuko.

"Where am I," said the beanie man and lay his head unconscious before Ryuko walk towards his side and spoke.

"You never learn your lesson have you, I told you there's going to be consequences when you hit little girls," said Ryuko sterned.

"Now that is out of the way, time for me to head home," said Ryuko walking to his motorcycle

"Wait" making Ryuko stop his tracks and look toward Mirei.

"Please, Tell me your name?" Mirei asked.

"Oh, it's Ryuko, Ryuko Kamikawa" Ryuko answered.

"Please, make me your disciple," Mirei asked

"Oh sure," said Ryuko indifferently about to walk but stop what the girls just said.

"What!" said Ryuko in shock.


(Somewhere)

Unknown to them, the figure was watching them from the building above with the other two on the figure's side.

"So Kamen Rider Progenitors wasn't dead after all," said the figure before walking away and the other two are doing the same.

The armored figure was standing on the building also watching from above.

"The war has begun," said the armored figure, and dark purple flames surrounded him


(Next morning)

(Be the One by Pandora ft. Beverly)

Ryuko was typing on his computer about his battle, the job interview, and the girl who ask him to be his disciple.

After Ryuko typed everything from yesterday, he heard the machined door opened and makes Ryuko excited and check on the new medal he extracted yesterday. the medal color is green similar to the Batta Medal but the image is different. the image shows a Stag Beetle.

"This is awesome," said Ryuko with a star in his eyes

"Hey, Kakon" Ryuko called the Insect Animalia out

"What's this one," Ryuko asked with stars on his eyes

"That was Kuwagata, a large beetle with large mandibles" Kakon explained

"Awesome," said Ryuko with stars on his eyes until they heard a doorbell

"Well we didn't expect any visitors, have you," said Kakon before turning toward Ryuko

"No, I didn't invite anyone," said Ryuko and he then get up in his chair

"But I will go and see," said Ryuko leaving the lab

Ryuko was walking upstairs and closed the door behind him. Next, he then walks toward the front door and to who it was. Ryuko then opens the door and shows the light shining on the screen.


The Progenitor with Animal Powers


To be continued...

Current Medals:

Cobra

Bat

Spider

Kabuto

Kuwagata

Batta

Cheetah