Author's Notes:

Hey guys! I'm glad that you like the last chapter of this Fanfiction. Cause I like to write this a lot. Now as of the other Riders that are not featured in this Arc, don't worry they will be in later Arcs as either Supporting Characters or Cameos. And as for the story the extra and side events are going to be featured in my upcoming Gaiden Fanfic. For now, I'll only focused on the main Seven. So, that I don't have to tire myself out from all the writing.

And No I'm not nerfing the Kamen Riders I'm just making them a little amazed at the Servants as they haven't met any Heroic Spirits during their Rider careers only meeting alternate versions, like Kouta, Takeru and Sougo in their respective Movies with Kouta being the Fateful Sengoku Battle Royale, Takeru during Ghost's Fateful moment as well as Sougo during Over Quartzer... And in this Fanfiction, they are facing off against the likes of Artoria Pendragon, Gilgamesh and Jeanne D'Arc people who have mystical and godly weapons tangled with Ancient monsters as well as History's greatest and worst Villains. Monsters and villains that existed long before the Villains that the Kamen Riders faced came or emerged to Earth.

So, in short, it's not like I'm messing around with the Kamen Riders, I'm just having them have an introduction to the world of the Fate Series. And in this last chapter The Kamen Riders will have a lot of time to shine... As well as work together with the Heroic Spirits to combat the Demon Pillars and Kamen Rider Kaijin. And most of the Riders will be at mission control on standby and would come at a Singularity at any time especially the Kamen Rider Supporting characters with Sento, Haruto and Banjou assisting Da Vinci. Daiki, Natsumi, Kotaro, and Yuto. checking the Status of each Singularity to figure out its status as well as stability, as well as, Makoto and Alain as well as their team helping the key Characters and other Historical Figures. Before the true Main Characters which are the Zi-O, Den-O, Decade, Ghost and Chaldea main characters arrived. So, you don't have to worry about too many Riders.

Disclaimer: I don't own any of the characters that have appeared in this Fanfiction, they belong to Shotaro Ishinomori and Toei Company, as well as Kinoko Nasu, Takashi Takeuchi, Type-Moon and Aniplex. That's all I'm about to say.

Quartzer Final

2004: The Final Battle and the Beginning of the Quest.

Ritsuka POV

A few hours later, Fuyuki, Japan

Year 2004

As we go to the other side of Fuyuki, we saw that Caster was now finished at explaining the situation to the Heroes. The Kamen Riders are now untransformed, with Roman summarizing, "In short you're Servants from a Holy Grail War that took place in this town, and the only survivor, yes?"

"I didn't lose if that's what you mean."

"Then what happen?" Sougo asked.

"Somewhere along the line, our Holy Grail War was switched with something else."

"Switched?"

"Into what?" Takeru interjects.

"I don't know the details myself. Overnight the town was blanketed with fire, humans had disappeared, and only Servants remained. Saber was the first to start up the Holy Grail War again. That one goes on a rampage with Relish like a fish finally getting water. Saber has defeated Archer, Lancer, Rider, Berserker and Assassin. And the defeated Servants become corrupted by a dark shadow, as you saw with Lancer." Caster explained at the two groups as he continued, "I disposed of the black Rider and Assassin before they encountered you and as for the Berserker well... I think its best if we leave him alone.

"I see so then all we have to do now to stop fix the Singularity." Tsukasa said.

"Yeah, so, if we defeat the remaining Servants..."

"The Holy Grail War will be over."

"There's a high likelihood of settling the Singularity F abnormality, too. Do you know where it is?" Olga asked.

"At the heart of this land, they're protecting it. the corrupted Holy Grail. I'll take care of the Archer Bastard. I need to settle things between once and for all."

"Wait! If you're going to fight him... We'll join too." Tsukasa said.

"Yeah, me, Kadoya, Woz and Soma here will back you up." Sento agreed with Tsukasa with a serious look.

"Wow! You guys have guts! I'll give you that."


(Cue Opening Theme: Over Quartzer by Shuta Sueyoshi Ft ISSA)

The 'Grand Order' it is the name of the quest to save Humanity from its destruction. Now it's time for the Kamen Riders and Chaldea to complete this quest. Now it's time to take back our future!

Oh, yeah, Oh...

We saw Mash, Ritsuka, Roman, Da Vinci look and marveled at the Rider kicking Kamen Riders, when suddenly they saw Zi-O, Den O, Ghost, Build, Wizard and Decade walking as their faces are now shown.

sshun de tsukamitoru no sa Are you ready? (Are you lazy?)

We saw Sougo, Ryotaro and Ritsuka look at the clocks as they reach it, they then swing their arms the background starts rotating.

Atarashī rekishi wa soko ni Feel it! Feel it! (Crazy baby!)

We then saw Geiz throws his cloak as he transforms to Kamen Rider Geiz.

Feel it! Feel it! (Crazy baby!)

With Tsukuyomi and Mash walking as Tsukuyomi changes to Kamen Rider Tsukuyomi.

Hikari wo kate ni kasokushite

We then cut to Sougo and Tsukasa who then transform to Oma Zi-O and Decade Violent Emotions as their eyes turn red and slanted.

Konomama Shout it out! Shout it out!

We then saw Takeru appear with Makoto, Alain as well as the Heroes of history. With Roman, Sento, Haruto and Da Vinci at mission control

Ima wo susume yō

We then saw Woz turning his book as it shows a shadowy figure with white hair and black eyes.

Madō hi mo Ikudo tonaku Asu no tobira

We then saw the Shadowy figure as he walks, as an image shows the Heroes doing their daily routine. As we cut to Woz's book showing Oma Zi-O destroying things as well as the Shadowy figure sending creating golden cups.

tatake

As it changes to a white version of Woz. As we saw the Ridewatches.

Mitsumeta sono saki ni

We then saw the statues of the Riders appearing as Geiz activates his Ridewatch.

Tobikonde mitara

As the statues continue to appear, as Sougo activates his watch with Ritsuka, Tsukasa, Takeru and Ryotaro watching him.

Believe Yourself!

Sougo, Tsukasa, Ryotaro and Takeru transforms into their Rider Forms.

Toki no ame Surinukete Tomo ni

We then saw the Riders riding their backs, as Shadowy figures started walking. As the Rider kicks started moving.

You, Over "Quartzer"

We then saw Zi-O riding through the blaze.

Mirai wo koe yō

We then saw heroes standing with serious looks on their eyes.

Kako no ishi wa Uso de wa azamuke nai

We then saw the Riders as well as the Servants fighting some enemies. With Woz using his Kamen Rider Ginga Miridewatch.

Kanjiro sō Nexus Future

We then saw Tsukuyomi and Mash walking down the stairs, as the scenery started changing.

Now, Over "Quartzer"

We then saw Zi-O using his sword.

Mabayui sekai Misete

As it switches to Geiz with them duking it out as the title appears.


3rd POV

A few more Hours Later, Fuyuki, Japan

Year 2004

You really don't mind helping us?" Olga asked Caster, "Even though you hardly knew everything about our situation?"

"Yeah, Are you sure?" Tsukuyomi also asked.

"No, I don't mind. Don't worry about it." Caster answered

Later, as they continue to walk towards the location, Caster then explained, "I don't get involved with everything outside of my Time Period. At the end of the day, I cooperate as a weapon. That's a Servant's Golden Rule." This caused Takeru to reply.

"No that's not true! Servant or not you are still a Hero. Someone who did amazing feats. So, don't consider yourself like that!"

"You're too kind, kid. but your purpose is to investigate this abnormality. While my purpose is drawing this Holy Grail War to a close. Our interests line up, so, why not join forces in a jovial manner?" Caster asks as he helps Olga up.

"That's a logical Decision."

"Man... He clearly is like the Kame he even acts like him when towards girls." Momotaros scoffed.

Now's not the time, Momotaros!" Ryotaro thought.

"Still it's Unusual. You don't have the potential to be a master?" Caster said.

"What of it?" Olga shouted as she pushes Caster back.

"I mean you're a first-class Mage. You just don't have the potential to be a master? Is it a curse?" Caster asked.

"What difference does it make!?" She shouted back.

"You've got a first-class stubborn streak too."

"What was that!?"

"You know she kind of reminds me of you, Geiz." Sougo remarked.

"Oh, shut up!"

As this was going on, we saw Ritsuka looking at Mash, "Mash? I overworked you, didn't I?"

"No! no, I'm fine! I'm operating perfectly! But..."

"But what?" Haruto asked.

"Oh, I know what it is..." Olga said.

"Senpai, I can't use my Noble Phantasm, yet."

"Noble Phantasm?"

"What's that?' Takeru, Sougo and Haruto asked.

"They're weapons that Servants use. But Mash you have..."

"No, this Shield hasn't shown me its true form yet."

This caused Olga to facepalm, "You said you didn't know what kind of Servant you merged with, so I figured this was the issue."

"I'm sorry."

"It's not all of your responsibility. An outstanding Master should be able to analyze the Servant with whom he has a contract."

"You mean."

Olga then pinches Ritsuka's face nd shouted, "I'm saying your level is low!"

"I'm sorry."

"You know he kind of reminds me of you and Sougo, Ryotaro." Momotaros telepathically said to Ryotaro.

"You sure, Momotaros?" Ryotaro asked.

"Of course, I am!"

"Sorry for interrupting the fun... But a Noble Phantasm is about Instinct. If something that calls upon that Instinct... It will awaken naturally." Caster said pointing at Ritsuka, causing Mash and Olga to block Ritsuka. This caused Geiz and Haruto to ask.

"Um... What are you doing? He's not going to attack, you know."

"Awkward." Tsukasa said.

"Yeah." Sougo, Woz, Sento, Takeru and Tsukuyomi agreed.

Caster then disappeared with Olga saying, "I'm tired. Let's rest up a bit ahead." The group then continued to walk.

Mash POV

A few Hours Later, Fuyuki, Japan

Year 2004

As they stayed inside a School. We saw that the entire group are now inside a school, with Ritsuka, Tsukuyomi and Sougo walking towards Mash and Fou with the former asking, "Senpai, Sougo-san, Tsukuyomi-san."

"Are you cold?" Ritsuka asked.

"Yeah, must be cold wearing that outfit."

"I agree."

"I'm fine you guys, it seems this form isn't affected by temperature."

"I see." Ritsuka said.

"Amazing." Sougo and Tsukuyomi marveled at this.,

"I'm sorry. I keep putting you through hard times, Mash. If your Master was a first-class Mage, instead of some commoner. Your burden would be lighter." Ritsuka apologized.

"Oh, come on, don't be like that, Ritsuka." Tsukuyomi said.

"Yeah lighten up a bit it's not your fault." Sougo replied.

"They are right, and you are really human. Senpai." Mash smiled. She then continued, "I'm happy, happy that I could form a contract with you as a Servant." This caused Ritsuka and the others to smile, Mash then look at the sky, "Was there a blue sky in there too?"

"Well, that's hard to say." Ritsuka said he then thought about something, he turns towards Sougo and Tsukuyomi and asked, "By the way we like to ask what your adventures as Kamen Riders were like?" This caused Sougo and Tsukuyomi to have very sad faces. With Tsukuyomi saying.

"Are you sure you want to hear it?"

"Yes." Mash answered.

This caused Sougo to sigh and declared, "Okay we'll tell you about our lives as Kamen Riders as well as our Senpais, but it won't be pretty."

This caused Ritsuka and Mash to nod as the Sougo and Tsukuyomi started their story. Ritsuka and Mash marveled at the origin stories of each Rider as well as feeling both surprised and sad about the ordeals of Sougo of him being the past version of both Oma Zi-O and Barlckxs and how his existence nearly causing the timeline and by extension the entire multiverse to collapse. And Tsukuyomi and his relationship with his brother Swartz.

"I'm sorry about that." Ritsuka and Mash said.

"Don't worry about it, we have gotten over that." The two Kamen Riders replied.

Meanwhile, we saw that Olga was now chanting a spell inside a magic circle, with Caster, Sento, Ryotaro, Haruto, Geiz, Woz, Takeru and Tsukasa watching her.

STARS, COSMOS, GODS, ANIMUS, HOLLOW, VOID, ANIMA, ANIMUSPHERE.

When suddenly Caster and Haruto picks up a bunch of them, with Olga shouting, "Hey you two! Don't touch that without permission!"

"Dude, that girl is such a tsundere, huh?" Woz and Tsukasa muttered.

"Just like Geiz-san." Ryotaro and Takeru smiled. This caused Geiz to sigh in exasperation.

"There's something important that I haven't confirmed yet."

"And what is it?" Caster asked.

"Do you know the true name of the Saber-class Servant? You speak as if you have fought her many times."

Takeru then interjects, "Yes, what was the name?"

"Yes, I know. Anyone who's been struck by her noble phantasm would realize her identity." Caster said in a serious tone. He then continued, "Pulling the Sword from a Stone that selects the king. It's a famous holy sword of all, even in your time period."

"Selects the king. You don't mean?" Takeru and Haruto muttered.

"Yes, its name is Excalibur."

This caused Olga and the other Riders to gasp, "Excalibur!"

"The Sword that belongs to King Arthur the celebrated King of Knights."

"Wait, King Arthur you mean the once and future King of whole of England and by extension Britain, the guy whose rule fall apart due to the Lancelot and Guinevere Affair and Mordred's rebellion?" Takeru and Woz shouted.

Sento, Haruto, Ryotaro and Tsukasa were also taken back by this, when Olga shouted, "You're going to tell her, Mash to fight King Arthur? Her Noble Phantasm hasn't released yet!"

"The Young Lady has that Shield."

"But her Noble Phantasm!"

"Wary of the Shield, there was a bowman who targeted the young lady."

"What?"

This caused Tsukasa to interject, "So you're saying that..."

"Yes, if Archer makes a move then the Saber is definitely involved. And if my hunch is right..."

Hours Later, outside Fuyuki, Japan

Year 2004

We then saw the group on a cave with Caster saying, "The Holy Grail is inside.

"It looks like a natural cave. But has it always been in the town of Fuyuki?"

"It's half-natural, Half Artificial. A mage spent many years expanding his underground workshop." Olga said, which fascinates Sento and Haruto.

"Wow! This is great!"

"I never would have thought there's a workshop here."

Suddenly Fou hissed at the opposite direction with Caster saying, "Well, speak of the Devil. The disciple is here."

They saw a white-haired man with a sleeveless black suit and a red cloth.

"The Archer Servant?"

"Are you protecting the wielder of the holy sword as always?" Caster asked.

"I have no memory of becoming a disciple. But I at least do the work of chasing off mundane visitors."

"In other words, you're a gatekeeper."

"My interesting, huh." Tsukasa said.

"I don't know what you're protecting Saber from. But let's end this here."

KAMEN RIDE

WOZ

DRIVER ON PLEASE SHABADOBI TOUCH TO HENSHIN

RABBIT TANK BEST MATCH

BATCHRIMININA BATCHIRIMINA

"HENSHIN!"

DECADE

FLAME PLEASE HI-HI-HI-HI-HI

STEEL MOONSAULT RABBIT TANK

ACTION PROJECTION! FUTURE TIME, AMAZING! ERA! FUTURE! KAMEN RIDER WOZ! WOZ!

SWORD FORM!

"Ore Sanjou!"

"You're going to need our help." Decade and Woz said.

"The more the better besides, this guy is going to be a bit of a pain." Build muttered.

"You guys seem to gonna like this." Ghost and Wizard said.

Archer then conjured up a bow and sword and declared, "Sorry, but I don't have that kind of free time!" He then shoots the sword towards Mash, with the latter trying to defend the group.

"Ehwaz!"

DEFEND PLEASE!

Only for the projectile to be burn into flames. As it also was in contact in a dome of fire.

"Don't say such sad thing, Archer. Unless you don't have the confidence to take us on?" Caster said. he then cast fire runes. With Wizard and Decade firing their guns. Archer then jumps to dodged it. with Caster shouting, "GO RIGHT NOW! SABER'S IN THERE!"

"Let's go!" Ritsuka, Sougo, Tsukuyomi, Mash, Olga and Geiz then went inside the cave. Archer then tries to go towards them when suddenly Caster block him, and Wizard cast another spell.

BIND PLEASE!

Chains then each bind Archer, with Caster, Decade, Wizard, Woz, Den-O, Build and Ghost readying their weapons. Archer then breaks the chains. When suddenly Caster has his staff tap the ground which causes fire to break out towards Archer. With the Riders started to fight him.

Inside the Cave

Year 2004

Meanwhile as we go inside the cave, we saw a young woman with black armor with prim bun white hair, and pale skin standing with a black sword opening her eyes. As the group confronts her, they suddenly saw Saber with Ritsuka asking.

"What is this?"

"Yeah what is that thing?" Sougo shouted.

"An exclusive magical core? This is the Holy Grail?" Olga exclaimed.

"Oh ho... That is an interesting servant there." Said the black armored woman. As she looks down on them.

"Is that Saber?"

"What Magical Energy!"

"Wait a minute why is King Arthur a girl?" Sougo asked.

"Umm... Sougo, now not the time!" Tsukuyomi shouted.

Sougo, Geiz and Tsukuyomi then nodded at each other as they pulled out their watches.

ZI-O II!

GEIZ! GEIZ REVIVE GORETSU!

TSUKUYOMI!

"HENSHIN!"

RIDER TIME! KAMEN RIDER! RIDER! ZI-O! ZI-O! ZI-O II!

REVIVE! GORETSU! GORETSU!

RIDER TIME! KAMEN RIDER TSUKUYOMI! TSU-KU-YO-MI!

This caused the Chaldea group to marvel at the new transformations of Zi-O and Geiz, they saw that Zi-O still stay the same except that his mask change with two clock hands in his eyes and Geiz meanwhile has orange Armor. With Ritsuka and Mash saying, "Amazing!" Mash and the Riders then ready for battle.

"A shield and some strange armor, is it? You should ready stranger girls and boys. With this sword, I will test your protection and strength!" Saber shouted as she readies her Excalibur.

Meanwhile, outside the cave

Year 2004

We saw that Caster and the Riders are now at the ground with the Riders each splitting up. Archer then conjured up an arrow, "You are wide open!"

As he shoots the arrow, Caster then conjured vines with Wizard changing forms.

SHABADOBI TOUCH TO HENSHIN LAND! PLEASE: DODODO DODODON DON DODODON!

As Archer tries to fire again, Caster and Wizard smile as the former said, "Here we go, grand scale!"

DEFEND PLEASE!

This caused the arrow to break and disappear after making in contact with the wall, Decade, Build, Ghost, Woz and Den-O then tries to attack Archer only to jump. But he was block by a rune with Den-O shouting, "Got ya, punk!" He then kicks Archer in the head. With the others using their weapons to hit him.

Archer was now struggling with him saying, "You put runes in the air?"

"Yeah, my mentor has a spell that summons the gate of the underworld. I ripped her off basically."

"So, wait you cast a knock off of your master's spell?" Wizard and Ghost asked.

"Geez this is awkward." Woz said.

"And effective." Decade and Build said.

"It won't do any good to shoot each other on long-distance. From here, let's go all out and do our usual fights." Caster said as he twirls his staff.

"He's right so why don't we settle this man in man!" Den-O shouted as he and the other Riders joins Caster. This caused Archer to smile.

"From a Caster Class and a bunch of armored men?" He said as he conjured two Chinese blades one whit and one black, "Maybe you guys are smarter than usual." Caster and the Riders then charges at Archer with Caster shouting.

"ONE'S CLEVERNESS AND TASTES ARE TWO DIFFERENT THINGS!

Meanwhile, back at the cave

Year 2004

As we go back inside the cave Saber is now pushing Mash and the Riders back, only for Zi-O II to appear towards behind her all the while clicking the top of his watches and belt and twist his belt around.

TWICE TIME BREAK!

He then proceeds to punch Saber in the gut causing her to stammer with Geiz Revive appearing switching forms.

SPEED TIME! REVI-REVI-REVI-REVI-REVI-REVI REVIVE WHIRLWIND! WHIRLWIND!

Geiz revive then change his armor to blue and then proceeds to punching her continuously at rapid speed. Saber was now getting irritated, "Why you!" She then tries to slash the two only for Tsukuyomi to do a time stop and slash her with her beam sword. Meanwhile we saw that Ritsuka and Olga are amazed at the Riders, with Ritsuka trying to go to Mash. Only for Olga to create a force field.

As the battle goes on, Saber is now shouting, "What's wrong? Won't you come forward?" She then tries another slash which causes Mash, Zi-O II, Geiz Revive and Tsukuyomi back. Ritsuka shouted, "Mash! Sougo! Geiz-san! Tsukuyomi-san!"

This caused Olga to be concerned to him. As Saber continues her fight against the four with her having a hard time with the Riders but an easy time with Mash. With Ritsuka shouting, "Everyone!" Only to be block by Olga with her arm saying.

"If you lend to go help them, you'd only be in the way. No worse than that."

"But Mash is..."

"Prepare your resolve."

Mash was now struggling to get back on her feet. As she saw the Riders fighting Saber.

"I understand how you feel. Painfully so..."

"Then..."

"You're that girl's master. That girl is your servant. And don't forget those three they're with her."

"As Mash is starting to get up, Saber then pushes back the Riders and landed a sword swing towards Mash who then was taken back. the Riders went towards Mash with Zi-O II asking, "Are you okay, Mash?"

As Ritsuka started to look away, Olga shouted, "Do not look away! Look straight ahead! Hold your head high! Right now, what should you really be doing as a master?" as they saw Mash getting up with the help of the Rider. Saber is now getting ready to attack by unleashing a magic aura while raising her sword.

Back at the outside of the cave

Year 2004

We then cut to the fight between Caster, the other Riders against Archer is now getting intense. With Caster and the Riders pushing Archer back, the former as well as Den-O, Ghost and Decade then disarmed him. when suddenly Build, Woz and Wizard go down towards him. with Caster and Build clashing blades with Archer. Struggling as they do it.

"Game over."

"Yeah the law of victory is set now!" Build announced with a smile.

"I think you've gotten rusty."

"You've got that right. You guys come this far, and you're worried about someone else."

"HEY GUYS WATCH OUT!" Den-O shouted. Build and Caster turn around and saw the white sword coming towards them.

Elsewhere, inside the cave

Year 2004

We saw that Saber is now raising her sword with her saying at the four, "I shall answer those eyes, and the heart that protects its master!"

As she was getting ready, we saw that Olga put down the barrier and shouted, "Please endure it, Mash! Tokiwa! Myokoin! Tsukuyomi!"

She then saw Ritsuka going towards them, "Wait Fujimaru! Fujimaru!"

Saber then shouted as she brought down the sword.

EXCALIBUR MORGAN! (約束された勝利の剣 (エクスカリバー・モルガン)

She then unleashed a black energy wave at the four, with Mash trying her best to block. The energy wave also causes winds that pull Ritsuka back.

Back at the battle outside of the cave

Year 2004

We then saw the Riders struggling to make their next move, because Archer has Caster on a sword lock, "It looks like this is the end."

"Will that shield resist the sword? Or will that sword pierce the shield"

"Will it?" Wizard back in his flame style asked.

"A long time ago I heard something similar to that."

"Yeah? And what's the answer?"

"The answer was a 'paradox'. Only contradiction is produced."

"I see..." Decade said.

"I don't know about that. I always think the same thing about that story." Caster said as he continued, "If both are equal, then isn't it all down to the skill of those wielding them? Or let me put it another way. If you are losing because of the weapons performance, then it's humans that compensate with wisdom, yes?" He then throws a pebble which explodes. Archer then tries to stab Caster only for him to realize it's a wood shell as the real Caster gets out of it with it exploding, "Never underestimate the Sage of the Forest!"

The Riders then starts to attack Archer who was now starting to get tired.

Caster then shouted, "Sorry this is all new to me!" He then conjured up a massive arm made of wood which grab Archer. This caused the Riders to then realize this is their chance.

"Hey Senpai, can we switch?" Urataros asked.

"What the... Kame? Ok fine, Kame! I suppose it's your turn." Den-O then push the blue button as he scans the pass.

ROD FORM!

He then changes his armor from a red peach design to a blue turtle design, "Now then won't you mind reeling you in?"

"Okay then guys it's the finale!" Wizard shouted.

FINAL ATTACK RIDE DECADE!

CHOINE KICK STRIKE SAIKO!

KAIGAN ORE OMEGA DRIVE!

TIME EXPLOSION

VOLTEC FINISH! YEAH!

FULL CHARGE!

They then proceed to kick the wooden hand causing it to explode. They then saw Archer disappearing. Caster then shouted, "My you guys are good." Den-O then pushes the red button.

SWORD FORM!

"Geez that Kame really likes to intervene."

They then reconvene with Caster who was mumbling, "True this is better than nothing."

Inside the cave again

Year 2004

Saber is now trying to break Mash's shield, with the latter now starting to fail. Zi-O II shouted, "Come on, Mash this is no time to give up!"

"Yes! If you do, we will be disintegrated!" Tsukuyomi and Geiz shouted.

When suddenly Ritsuka hold the shield, with Zi-O II saying, "Ritsuka what are you doing here?"

"I'm trying to help."

"Senpai." Ritsuka then uses his command spell to empower Mash, as they stand the three Riders also join in. with their time powers being transferred to Mash.

"Please watch me, Master, Sougo-san, Geiz-san and Tsukuyomi-san!" As they hold the shield it produces a projection of a wall with clocks and a moon banner.

"The noble phantasm!"

As Mash shouted, Saber said in surprise, "That shield is!" The black wave then hit Saber point blank causing an explosion that has Saber struggling. Mash is now close to being unconscious, with Ritsuka and the Riders trying to help Mash.

"Mash!"

"Stay with us!"

Saber then prepared to fire.

EXCALIBUR!

Ritsuka, Mash and the Riders then stands up with Mash saying, "I'm fine... It's not over yet." As Saber was about to fire, they heard a voice spoke

"My Magecraft is a Cage of Flames. A flaming yet verdant giant. Retribution. A shrine that purifies the evil of human affairs."

They then saw Caster who said to them, "I'm proud that you've held this long. The one who destroys Wickerman!" He then conjures up a wood statue that tries to grab her, she tried running in its arm only to be grab by another hand.

"OKAY GUYS! THIS IS THE FINISHER!"

TWICE TIME BREAK!

HYAKURETSU TIME BURST!

TIME JACK!

The Riders then jumps and then kicks the state which then explodes and reveals Saber wounded.

"Victory for the power that protects. I see... Such like that innocent one." She then smiles as she continues, "Ultimately no matter how fate changes, I face the same end when I'm alone."

"What does that mean? Do you know something?" Caster asked.

"Yes, what do you mean, Arthur-san?" Zi-O II stated.

"Eventually, you will come to know Ireland's child of light and Demon King of Time!" The last one really surprised The Riders Saber then continued as she disappears, "Grand Order... And the battle over the Holy Grail has just begun..." This caused the heroes to be confused.

"Hey, wait! What do you mean by..." Caster asked as he notice that he also starting to disappear into thin air he then towards the heroes with a smile on his face as he carries his staff, "Hey Kids, Young ladies I'm leaving the rest to you!"

"Caster!"

"If there's a next time, could you summon me as a Lancer?" The two then disappeared to thin air.

"Confirmed. Saber and Caster are both gone."

"Did we win?"

"Looks like it." Zi-O II replied.

"Now all we have to wait is for Tsukasa and the others to get here." Tsukuyomi said.

"I agree with you." Geiz Revive said.

"Well done, Mash and Fujimaru! It looks like I can't get any visuals down there. Director now we don't have to worry about Singularity F."

"Grand Order... How did the Servant know that name?" Olga asked herself.

"Director?"

"Olga-san?"

"Well done, Mash and Fujimaru as well as you three Riders." She then continued, "Even if you're inexperienced, or even if you're a temporary Servant... You still made a wish and the Shield opened to you. If you do acquire the True Name, you didn't have the slightest interest in becoming that Heroic Spirit. Maybe that's why the Noble Phantasm responded to you. That's some fairy tale. Never mind me. But it's inconvenient using a noble phantasm without a True Name. I'll think up a good spell for you. Let's see... How about Lord Chaldeas?"

"Thanks Director. Lord Chaldeas..."

This caused the others to sweat drop with Zi-O II and Tsukuyomi saying, "She's really a gadfly, huh? And she also has a funny naming sense." Suddenly they heard clapping they turn and saw that it was Lev saying.

"My I never thought you would all get this far, and with new allies. This is an unforeseen event of the project that goes beyond what my tolerance allows."

"You're..."

This caused Olga to be overjoyed saying, "Lev... Lev... Thank goodness you're alive." As Olga and Lev are talking, However, Geiz Revive realize something is wrong when Lev murmured something about Dr Roman being late and shouted.

"Stop Olga! There's something strange about that guy."

"What do you mean?"

"I knew something suspicious about you! When Roman told us about the explosion. Ritsuka and Mash here never found a body of you, and from Olga's tone you are a powerful Mage you had many ways of escaping the accident."

"What do you mean Geiz-san?" Mash asked.

"I'm saying he's the one who was responsible for the accident!" This caused the others to be surprised. With Olga saying.

"That's a lie... That's a lie, right."

"No, it isn't. and I guess you're here to finish the job, huh?!"

"Yes, you're right, and I cannot believe you're still alive Olga! Well not exactly alive, your physical body anyway. Yet when you were alive you didn't have the aptitude for Rayshifting. But you had the earnest desire for it. that's why the moment you return to Chaldea you'll cease to exist."

"Cease to exist?"

"But that's too miserable to contemplate. You dedicated your life to Chaldea... So, the least I can do is to show you what's going on." Lev then open a hole which shows Chaldeas.

This caused Olga to be horrified, "What is that?! It's not real is it? that's just a virtual image right, Lev?"

"That's the real thing, I link Space-Time together for you." This shocks the Riders because this means he can travel through time.

You are with the Holy Grail, even this is possible."

"Take a good look, Scion of the Animusphere family. This is the fate of your family's lunacy." Lev then tries to pull Olga towards Chaldeas.

"Hey what are you..."

"This is the end; I'll make your wish come true. Now touch your treasure."

Olga then started screaming when suddenly Tsukuyomi shouted, "I don't think so!" She then stops Time and jump so fast that she grabs Olga. She then shoots at Lev as time started moving.

Lev was surprised saying, "What the what the hell happened?"

"Simple I stop Time and rescued Olga-san here." Tsukuyomi answered while holding Olga who was now unconscious.

The others then went towards her with Ritsuka saying, "Thank you Tsukuyomi."

"Why you I'll make you pay for this!' As he was saying that he heard a man from behind saying.

"Hey!"

He turns and saw Den-O and the others, with Den-O punching him in the face. They then went down and join the others, as Lev glared at them. Mash then forward saying, "Oh no!"

"You trash! You'll regret laying your hands on me, and Romani as a fellow student who studied sorcery together, I will give you a final advice. The Future has not disappeared. It has been incinerated." This caused the Heroes to be surprised, "Chaldea is probably being protected by the magnetic field of Chaldeas. I'm sure the outside is meeting the same fate as Fuyuki.'

The reason that we couldn't contact the outside. Isn't because communications are down, but because there's no one outside to receive them."

"You will not perish from becoming an evolutionary dead, nor will you be destroyed after engaging in a war. Rather from your meaninglessness. And because you have lost the favor of our king... YOU WILL BURN AWAY LIKE USELESS WASTEPAPER, LEAVING NO TRACE BEHIND!"

"Blah, blah, blah... And I thought you'd be more different than most of the bad guys we knew." Build said causing Lev to turn to him.

"What do you mean?"

"I mean that your words remind me of a certain Red Alien that I fought before babbling about how Humans are the worst. And how it's their fate to be destroyed. Well news flash that's not going to happen because we are here."

Lev is now getting angry as he said, "You dare talk like Humans had any hope of survival?!"

"Yes, he is cause as long as we are here, we are Humanity's last hope." Wizard retorted

"And we won't let you have your way with this world too, you green-hat wearing long nosed bastard!" Den-O shouted.

"That's right don't underestimate Humanity's potential! We will fight and live until our lives burn bright!" Ghost stated.

"And I won't let you destroy the world as long as I'm not King yet!" Zi-O declared.

"And as for me, you think that you won just because you incinerate the world? No because I 'm here to destroy it." Decade finished.

Lev's anger is now in it's breaking point as he shouted, "YOU! JUST WHO THE HELL DO YOU THINK YOU ARE!? YOU BUNCH OF TRASH!"

Decade smirk at this question, "Just some passing through Kamen Riders, you better remember that!"

The cavern is now collapsing with Lev saying, "Tch the Singularity is at its limit. The accursed Saber caused me unnecessary trouble. Trying to maintain this time period even while being awarded by the Holy Grail. Well then farewell Romani, Mash and the 48th Master Potential and as for you Kamen Riders I'll make sure I'll remember and make you pay for what you did." He then disappeared as the portal also disappeared.

"The cave is collapsing!'

"We've got to get out of here!"

The Riders then took a Dimensional Wall as they bring Mash and Ritsuka with them.

Ritsuka POV

Back at Chaldea

Year 2018

We then saw Ritsuka waking up at his room and saw Fou at a chair. He then went towards the Control Room to find Mash when he heard a voice, "Fou?" He then turns to see Fou and Mash Playing with each other as they saw each other Mash said.

"Good Morning."

"Good Morning, Mash!"

"Ahem!"

Well look who is awake!" The two then turn to see Romani, The Riders in their civilian forms, Hana and the Taros looking at them. they then stop hugging. With Urataros saying

"My, you two really love one another."

"Man, it makes me cry!"

"Pink sister is so cute!"

"Now's not the time, Urataros guys!" Hana replied.

"First of all, congratulations on returning alive, Fujimaru. Mash and Chaldea were saved thanks to you."

"Yeah, you're one tough kid." Sento agreed.

"Um... What about the Director!?" This caused them to be silent with Takeru replying.

"She's fine but her soul is now in safe keeping with one of my friends until she has a new body." This caused Ritsuka to sigh.

"Because of you three alongside the Kamen Riders the Fuyuki Singularity has disappeared."

"Well that's good!" Sougo said.

"However, seven new Singularities have been discovered." This shocks the others.

"Seven new worlds, eh?" Tsukasa said.

"They're Space-Time disturbances that don't even compare to Fuyuki's. Using Rayshift and other methods of Time Travel that the Riders produced to each of these seven singularities and returning history to its rightful form... That's the only way to save humanity."

"I see..." Geiz and Woz said.

"So that's the plan." Tsukuyomi stated.

"Aside from you, all of the Master potentials are in Cryopreservation. Mash is the only Servant that we have. Under the circumstances I am practically forced to tell you this, but still I need to say this. 48th master potential Ritsuka Fujimaru... Are you and your Servant prepared... To shoulder the responsibility of Humanity's Future?"

"C'mon Ritsuka what its going to be?" Haruto and Sougo asked.

"If it's something I can do."

"Thank you!'

"Wow! You are really like Ryotaro here!" Momotaros said.

"Those words determined our Fate. From here on out, Chaldea will follow through on Former Director Olga Marie's Plan to preserve humanity. Our aim is to protect as well as to recover Human History. The search objectives are Holy Relics. From various eras and the Holy Grail appearing to be the cause. The opponent we must fight is history itself. Many Heroic Spirits all who were legends will be standing in our way, the only way to survive is by taking back our future in this way. No matter what sort of end awaits us... The name of this operation is Chaldea's last yet Original mission. The order to protect Humanity 'Grand Order!'"

"Wow! That is some speech." Haruto and Sento said.

"Will you also join us?"

"Of course, we do, after all we have the same objectives." Sougo answered.

"Thanks."

"I'll look forward to working with you Sougo."

"Yeah me too."

Fate Grand Order: The King of Time and Humanity's Last Master: Fuyuki

Main Characters:

Kamen Rider:

Sougo Tokiwa – Grant Gustin / So Okuno

Geiz Myokoin – Scott Menville / Gaku Oshida

Alpina Tsukuyomi – Michelle Ruff / Shieri Ohata

Junichiro Tokiwa – Jamieson Price / Katsuhisa Amase

Woz – Ian Sinclair / Keisuke Watanabe

Tsukasa Kadoya – Ray Chase / Masahiro Inoue

Ryotaro Nogami – Justin Briner / Takeru Satoh

Hana – Jenna Coleman / Yuriko Shiratori

Momotaros – David Tennant / Toshihiko Seki

Urataros – Eric Vale / Koji Yusa

Ryutaros – Kyle McCarley / Kenichi Suzumura

Kintaros – Christopher Sabat / Masaki Terasoma

Owner – Neil Kaplan / Kenjiro Ishimaru

Naomi – Cassandra Lee Morris / Rina Akiyama

Takeru Tenkuji – Zach Aguilar / Shun Nishime

Sento Kiryu – Aaron Dismuke / Atsuhiro Inukai

Haruto Soma – Chuck Huber / Shunya Shiraishi

Oma Zi-O – Troy Baker / Rikiya Koyama

Chaldea:

Ritsuka Fujimaru – Griffin Burns / Nobunaga Shimazaki

Mash Kyrielight – Erica Mendez / Rie Takahashi

Olga-Marie Animusphere – Kira Buckland / Madoka Yonezawa

Romani Archaman – Xander Mobus / Kenichi Suzumura

Antagonists:

Saber Alter/ Artoria Pendragon – Kari Wahlgren / Ayako Kawasumi

Lev Lainur Flauros – Jalen K. Cassell / Tomokazu Sugita

Unknown POV

At an unknown throne Room

Year 2068

We then saw a golden armored man who has a resemblance to Zi-O only with red eyes. This is Oma Zi-O

"I see so that's what the cause, well my youthful self I hope you had an easy time fixing this Seven Singularities or otherwise I'll take matters into my own hands.!'

He then disappeared as he watches the red sky with a flaming city.

Author's Notes:

And that's about it you guys! Hope you enjoy the story as much as I do... See you next time in Orleans! And also as for Olga she's now in the same situation as Kanon Fukami at the beginning of Ghost so don't worry!