The First Step.

I DON'T OWN ANKOKU KISHI MONOGATARI OR KAMEN RIDER AND THEY BELONG TO THEIR RESPECTIVE OWNERS.

"Kuro-chan?"

"Yes?"

A couple was resting on a tree in a park, the young man's head was resting on his girlfriend's lap. It's been a hectic week for him for the past few days. A title fight, bills to pay and now his beloved girl has a rare condition that probably stemmed from the Skywall.

"Is there something that is bothering you lately? You are always spaced out as of lately?" Kasumi asked.

"Well…it's just I am thinking over some things, but don't worry about it." Kuroki replied as he cheered up his girl.

"... Thank you Kuroki."

"Hm? What for?"

"For making me happy."

"Huh? Is there something wrong Kasumi?" Kuroki was starting to get worried with his girlfriend's replies.

Kasumi just smiled and held Kuroki's cheek.

"Time to wake up now."

Kuroki opened his eyes, and he found himself staring at the ceiling.

"That dream again huh." Kuroki then touched his cheek and felt what seemed like a teardrop on his face.

"Kasumi…"

Kuroki was now ready to go on a journey. He wanted to investigate the Hero's party condition and assess the situation. Fortunately the Lhougas whom he confided about his plan also took it as finishing the job that was left unfinished.

Yesterday, Kuroki was studying about magic together with Lhougas, who were the most versed in the arcane arts in Nargol . There they have discovered that while Kuroki could use black colored flames, he can't use other types of element or even a simple fire spell. Also spirit magic is out of the question as the spirits that he tried to use seems to run away from him the instant he summoned them.

"Sorry Modes for hearing this selfish request of mine, hope you could understand." Kuroki apologized as he told Modes his plan to investigate the Hero's party.

"No need to apologize Kuroki-dono! I am quite surprised that you are volunteering to scout their movements, which was supposed to be our job!" Modes assured.

"Nah don't mind it. You treated me very well, I suppose this is just a small favor for you." Kuroki replied.

Lhougas then approached Kuroki " Oh Kuroki-dono, since you are quite unfamiliar in this world, I would like to introduce you to a reliable guide, Nut!"

A small rat squirrel with red fur appeared in a room, and stopped at Kuroki's feet and introduced itself.

"Nice to meet you Kuroki-sama! I am Nut!"

Lhougas then explained further "Nut is a fire rat, he has an excellent sense of direction and is extremely competent in gathering intel. Please take him on your journey."

"Hello there Nut, I am Ryuuga Kuroki. Nice to meet you."

"...Ehhhh, Kuroki-sama you're so nice! I guess those rumors that you are scary aren't true after all!"

"Scary? Who? What? Me?"

"Yes?"

"That's not true."

"Liar!." Everyone in the room screamed in their heads except for Modes.

"Hey Lhougas, thank you for providing me for some supplies and a guide. It's more than enough for this journey." Kuroki thanked Lhougas.

"Oh this is nothing Kuroki-sama, in fact it's nothing compared to what you have done for us."

"Kuroki-dono, I bid you to be careful as once you are outside the boundaries of my territory, you are not under my protection anymore. Though, honestly, I am confident that you can beat anyone out there. You can use a teleportation stone that I gave you if you are really in a pinch. ." Modes warned his friend.

"Thanks Modes, Well gotta go now, be careful here."

With that, Kuroki left the palace.

"Well, this isn't my first time flying but riding like this sure is nice too." Kuroki quipped.

"Oh is that so Kuroki-sama? Do you have wyverns too in your world?" A young rune knight named Gned asked while they were flying down the mountain with a wyvern..

"Ah, we don't have wyverns, we have these steel vehicles called "airplanes" that can do the same thing, although they don't have much freedom when flying."

"Ohhhh… is that so. Wait, THEY FOUND US!" Gned immediately picked up his pace and started to take evasive maneuvers as the patrolling angels that was guarding the airspace outside of Nargol started to fire arrows on them.

"Gned, I will drive them off,I will take it from here!" Kuroki jumped off the wyvern and recited a spell that he learned from Lhougas: a flight spell. Kuroki was floating in the air and stood in front of the approaching angels.

"Nut, hold tight. This might knock me back for a bit."

"What are you planning Kuroki-sama!?"

Kuroki didn't reply but instead he stretched his hand, a dark portal opened in front of him and Kuroki reached inside and grabbed…

"TRANSBLAZE GUN!"

Kuroki aimed the Transblaze gun into the incoming arrows and shot them off one by one. The angels were surprised and horrified that their projectiles were erased. Taking their surprise as an opportunity, Kuroki inserted the Dragon Fullbottle into the slot.

"DRAGON!"

Kuroki aimed the gun at the angels and pulled the trigger.

"BLAZE BREAK!"

The Transblaze gun fired a black colored flame in the shape of a dragon's head towards the angels, its recoil was strong enough to knockback Kuroki. The dragon's head opened its mouth and angels were terrified as they scrambled to evade.

"WHAT THE HELL IS THAT!?"

"A black flame…by Oudis name that must be Runfield! RUN FOR YOUR LIVES!"

The angels scrambled and turned back, running away from the draconic fire.

"Wow…"

Nut and Gned were awed by Kuroki's weapon and power while Kuroki floated towards Gned.

" I managed to drive the angels away, lead the way Gned, I will be on the lookout."

"Sure, Kuroki-dono."

Kuroki followed Gned to their destination, he kinda enjoyed soaring to the clouds but since Kuroki needs to concentrate just to fly, it bums him that he can't enjoy his surroundings.

"You know what? I think I will ask them if I could get a wyvern instead." Kuroki mused.

The pair arrived at the end of the Akeron Mountain range and dismounted.

"Thank you very much Gned."

"It's me who should say that Kuroki-dono!"

Gned bid Kuroki farewell after unloading Kuroki's baggage. At this point, Kuroki had to walk on foot towards Holy Republic Lenaria where according to the intel that Modes and Lhougas gave him is where the Hero Party is located. From where he was up to there, it will take two months at least even with his constitution.

"Well…this would be my start of the journey, Let's go Nut."

Kuroki took his first step towards the human world.

"..."

"..."

"...So youre saying that our muscle idiot is spirited away, Sento?" A brown haired man wearing a heavy parka confirming the info to the other man whose appearance was unkempt..

"Yeah. It happened so fast, Kazumin. We were just cleaning up after we attacked a Downfall base but suddenly a bright light and a circle of some sort appeared on Kuroki's feet, then he disappeared!"

"Do you think Evolto had a hand in this?" A woman wearing a simple dress and jacket beside Kazumi named Misora (Miitan for Kazumin) asked.

"Nope, I didn't detect any abnormal Hazard level in the area, besides Evolto did say that he won't mess with us for a while. "

"Then Misora, Evolto is crossed out on our list." Another woman that is formally dressed named Sawa confirmed.

"...Hmmm."

"Oi Beardo, you seem kinda spaced out for a while." Kazumin tapped another man wearing a jacket on the shoulder."

"This scenario is kinda familiar." Beardo or better yet Gentoku voiced out his thoughts.

"What do you mean by that?"

"Well you see, I am reading in my spare time if I am not busy or thinking of a new fashion-What's with the stare Misora? Are you jealous? Well back to the topic, I am reading this…."Summoned to Another World" stories. You know, people being hit by trucks, getting killed or just plain kidnapped by some magic circles. Based on what Sento said, do you think that he was summoned to another world?" Gentoku wondered.

"What the fuck Beardo? Are you high or something? Like that could possibly happen! Magic sounds like bullshit!" Kazumin retorted.

"Yeah, tell that to the Sword of Logos people or Wizard himself, Potato."

"...Ok you win this time."

Sento suddenly stood up. " Hey, that could work!"

"Eh?"

" As much as I am a smart,brilliant and handsome scientist myself, magic is really out of my expertise. Gen-san might be right on this one despite his sucky tastes in fashion and literature-"

"Oi."

"Deal with it. As I was saying, maybe Kuroki's disappearance could be caused by magic, so in that case why don't we go to people who know how to do magic!" Sento happily announced.

"Wizard?" Sawa asked.

"Nope, he was too elusive, but I know someone else though.

"Who?"

"Done."

The man happily exclaimed as raised his manuscript. His editor is bugging him for a while to submit another story they can publish. Despite the tight competition against the new writers, his stories are highly regarded for not being not like those "summoned to another world" stories that are rampant today. But he doesn't mind, in fact he was happy that there are still people who let their imagination run free thru writing and creating stories..

*Knock* *Knock*

"Oh that must be Mei."

Touma Kamiyama stood up and opened the door of his shop. Instead of Mei, a group of people composed of 3 men and 2 women.

"Uhmm hi, How may I help you? My shop is still closed though."

The man wearing a long coat asked " Are you Touma Kamiyama or better yet Kamen Rider Saber?"

"Huh? How did you know that?" Touma was surprised as only a few people knew his identity as Saber.

"Well I am Sento Kiryuu, or better yet Kamen Rider Build and those two are Rogue and Grease."

"What's with the lame introduction!" Gentoku and Kazumi roared out.

"Uhm… OK? So Build senpai, what can I help you with?"

"Our muscle idiot probably got summoned to another world, we need your help."

Touma was speechless for a bit and uttered,

"Oh dear, that's not good."

A/N: Ok, another chapter is done. Like I said, I was waiting for the Kuroki and Alphos fight to be translated and here we are. Sorry it took me a while because I am really busy and I was reading lots of manga and light novels for research too. Also watched Geats and finished Black Sun too. Like I said, Kuroki still can't get over Kasumi's death and let's say after the events of Build her death started to sink in him. Kuroki knows in his heart that he is still grieving that's why Modes offering to help him create a Goddess is a chance to heal his broken heart.

By the way you did notice that Kuroki has a new weapon called Transblaze Gun, think of it as a black and red colored Transteam gun. It can't be used to henshin like Transteam and Nebula Steam Gun, but in exchange it has greater firepower and versatility with covering Cross-Z's weakness in long range and I have lots of ideas on how Kuroki fights with it. The reason I made it is because I don't want Kuroki hacking and slashing people with the Beat Crosser or the Demonic Blade all the time, hell he just donuted Reiji here, and had Kuroki used either sword he could have split him into two.

Kinda spoiler but I would like to show that Kuroki is waaaayyyyy above the people in the world of Ankoku Kishi. Dude has been fighting way worse enemies than could kill in one blow (Killbus and Evolto) that he needs to think how to survive, not to mention his fights post story of the Build. Meanwhile Reiji and his band of idiots are somewhat normal fish in a tiny pond, so not only are they not learning, it is also degrading their skills.

For subplot B, yeah the Build crew will need help because Sento is just a scientist not a magician so its out of his scope, luckily there are some Riders who happens to know some magic.

Well that's it for now, if you have any question or something, it would be really appreciated. Oh and kinda need a beta reader.