Author's Notes:

Hey there… hope you guys are staying healthy there! Man, this is getting really tiring, after all this is the next chapter of the Septem Singularity. With the heroes now going to a cave, where they have to do a little favor for Medusa's sister Stheno. Only for them to get attacked by skeletons.

Now then as soon as the first Camelot movie released in April 21, I will be writing the movie Fanfic as soon as I'm done with this chapter. Well, if that's possible…. And if it still not subbed yet, I'm going back to my new OVA series. Or write the game version of Camelot splitting it to two parts. And only replacing it with the movie version if it comes out subbed.

Well, as for the Tsukihime remake I was surprised that they changed the voice actors. I mean they got the Seiji Sagara's VA for Shiki, Minami Nanami VA for Arcueid, Miku Kenjou's VA for Ciel, Pyra/Mythra VA for Akiha and Yuzuriha Ogawa as well as Hime Arikawa's VA for Hisui and Kohaku. So, I guess what's done is done.

Disclaimer: I don't own any of the characters appearing in this Fanfiction, they belong to their respective creators: Type Moon, Kinoko Nasu, Takashi Takeuchi, Shotaro Ishinomori and Toei Company.

Quartzer 6

quod amor a patruo et ex provocatione Spartanae

3rd POV

Inside the cave, on an island off the coast of Gaul

60 A.D

The heroes are now currently fighting the skeletons, with most of them getting so many kill counts. Sayo commented, "My, Oniichan and the others are giving it their all.

"Yeah, especially the Alters, Momotaros-san, Urataros-san, Kintaros-san, Ryutaros-san, Yuto-san, Wataru-san, Kadoya-san, Kaitou-san, Aruto, Sougo, Geiz and Tsukuyomi." Ritsuka agreed. We then saw that Den-O is now in his Climax Form, whilst Zi-O is now in Zi-O II.

As they slaughter all of the Skeletons, the other Taros leave Den-O's body with Ryutaros saying, "Be careful out there Momotaros!"

"You don't have to tell me."

Nero then said, "Phew, I'm getting a little exhausted... I want to go back and rest..."

"But what do you know? Looks like we reached the back of the cave while fighting. I'm getting a unique signature there. This amount of energy—No, that's not possible."

"What is it, Doctor? Could the Holy Grail really be here?" Mash asked.

"No...no, it's not the Holy Grail at all! It's a Phantasmal Beast not a dragon, but a powerful mystical beast!"

They then saw a large chimera with a face of a lion, this caused the heroes to be gawked at this with Wizard and Beast asking, "Woah is that a Chimera?"

"GARRRRRRRRRR!"

"This is—" Mash exclaimed.

"It's so huge! Oh, but that lion has a cute face!" Nero marveled.

"We're inclined to agree." The Artoria trio agreed.

"It's a chimera, a legendary beast of ancient Greece. This is not a product of magecraft, but a true mystical beast!"

"Yeah, we know!" Everyone shouted.

"Why would a thing like this be here? Oh, I know why. That goddess. It's powerful and has considerable toughness, so be careful!"

"Roger. Master, commencing battle!"

"Count us in…" Fourze grinned.

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

It's time for a new Order to complete, as Ancient Rome is in the brink of collapse, will Zi-O and the others prevail. Rejoice for It's time to correct human history or die trying.

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. With Nero and Kiva emerging from the roses

Mirai wo koe yō

We then saw heroes standing with serious looks on their eyes. With Artoria Pendragon splitting into her three aspects. Dark Kiva walking as the night comes.

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. With Natsumi, Medusa and Kaitou appearing to take their hands.

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.

Sougo POV

Inside the cave, on an Island of the coast of Gaul

60 A.D

As the heroes fight the chimera, Zi-O II and Geiz Revive are now using their abilities to beat the monster. With the others also helping the two, as the hours passed by. They are starting to get tired at the fighting.

"This is getting really annoying! Guys let's finish this!"

They then used their finishers to destroy the chimera, as they finish killing the creature. They then found the exit of the cave. With Ritsuka muttering, "Man… that was tiring Stheno better explain all of this."

"Yeah, I agree." Jeanne Alter muttered.

Outside the cave, On the Island of the coast of Gaul

60 A.D

As the heroes went towards Stheno the latter then asks them, "Haha. Welcome back, did you enjoy your special reward to the fullest?" This caused the heroes to sweat drop.

"Does it look like we enjoy all that?" Geiz, Artoria Alter, Jeanne Alter, and Beast asked.

"Hey you three! Calm down!" Artoria Lily and Zero One interjected.

"I'm tired... so exhausted..."

"Yes, I'm sure... Consecutive battles in a closed space will wear you out beyond belief..."

"I'm totally wiped out." Ritsuka panted.

"This is nothing it's okay, Peach girl." Den-O said.

"Yes, I think you should rest immediately... Should we return to the ship?" Mash then veered to Den-O, "And are you sure? Momotaros-san, at times you display extraordinary endurance..."

As they continue to talk, they then heard two people talking it was Elisabeth Bathory and a kitsune, "Really, you're so lame! I could've taken on a big cat like that without breaking a sweat!"

"Ahahahaha!"

"Is that…"

"Master, I'm sensing two enemies. Either lizards, dragons, or maybe idols... At any rate, we're going to take them out!" Mash exclaimed as she readies her shield.

"No but that's Elisabeth!" Ritsuka and Zi-O II shouted.

"I know, I know! But she's dangerous, Senpai, Tokiwa-san. I have a feeling that she might screw everything up!" Mash insisted.

Tsukuyomi sighed, "Geez this is getting annoying!"

"I agree... Let's pretend we don't notice her, so we can get away with it, Fujimaru-kun! Tokiwa-kun!" Roman interjected.

"Man, Doc. You too?" New Den-O replied.

Elisabeth then took notice of the Heroes and said, "What, that reaction again! You ugly, weird deerlet!"

Mash becomes so appalled, "Senpai, everyone a weird person told me I'm weird!"

"Yeah, we can see that!" The others replied.

"There, there. Mash." Ritsuka said.

"Hmph, I guess that cave was really tough. Well, it can't be helped with the Puppy's ability." Elisabeth snarked.

"...Who the hell are you, appearing all of a sudden and talking nonsense?" Nero shouted.

"Who the hell are YOU? Oh, I'm not sensing any magical energy...wait a human? You?"

"Not sure why you're so surprised. You are rude and insensitive. I would have slashed you already if you didn't look so cute. I'm Nero Claudius, the emperor of this era. ...Um, why are you looking at me like that?" Nero look at Elisabeth who is now gawking.

"Are you kidding me? The real Nero?!"

"The real..."

"Well, I'm not surprised about this…." Decade muttered.

"What do you mean by "real?"" Nero asked.

This caused the others to facepalm with the fox laughing, "Ahahahaha!"

"This is worse than France! I'm even more confused about what's going on!"

they settle down and ease the tension down, since Ritsuka as well as Zi-O II who had turn back into his normal form. Stheno then answered, "Anyway when I materialized in this world, I dragged these two with me. I didn't feel like I'd be able to complete the Heroes' Cave on my own. So I had these two serve as my testers for the cave, that's all I think?" Stheno smiled.

"Hmph, it was a totally boring dungeon. Oh, but a live show in an underground cave is a new concept, right?" Elisabeth replied.

"Ahahaha! All right, let's introduce ourselves! I am Tamamo Cat, one of the Tamamo Nine! I tag "woof" at the end of my sentences. My hobby is
cafe management. My favorite food is carrots. Hmm. That's pretty inconsistent even for me. Woof woof."

"What the fox talked, and did she call herself Tamamo as in Tamamo no Mae?" Ghost said.

"She talked!" Nero shouted.

"She did that on purpose, too. Woof!" Mash remarked.

"...Neutral, huh? I'm glad she's not a hostile Servant Or maybe I should say I'm glad she's not our ally?" Roman remarked.

"I was laughing because it was fun. I'm a laughing drunk." Tamamo Nine giggled.

This remark did not impress the heroes who are now sweat dropping, "Oh, s-sure."

"I'm Tamamo Cat, one of the Tamamo Nine! Can I speak in cat language?" Tamamo Cat grinned.

"What?" Mash and the others said.

"What's the Tamamo Nine?" Nero asked.

"No? How about dog language?" This answer caused the heroes to groan.

"Umu?" Nero replied.

"Hehe! Your reaction was better than I thought It requires technique to communicate with her. Thank you, Tamamo Cat. But why weren't you in the treasure chest? You were supposed to be the last trick. After they dealt with the chimera, you should've come out."

"What!? So, she's the true final boss?" Kivala exclaimed.

"Now I'll get my carrots as the reward!" Tamamo Cat smiled.

"Did you eat the chest? Oh my...okay. I understand."

"Stheno-neesama…" Medusa groaned.

"H-Hmm. Their conversation seems to be working out... She's a goddess after all. She doesn't even flinch at that oddball." Nero remarked.

"Oh, well. Though this island has been somewhat fun, I guess we came here for nothing."

"You sound like it's not your problem..." Zi-O said.

"Ahahaha! It happens! Don't look so depressed. Why don't we return to Rome for now—" Roman smiled.

The heroes are not impressed, "But it looks like we can't! There's a Servant over there!"

"What there's a Servant?!"The Kiva brothers exclaimed.

"Huh?"

"Indeed."

"Oh?"

"Doc?" Mash asked.

"Sorry, that didn't come out right! There's another Servant besides you guys, it's coming from the sea!" Romani shouted.

They then saw that Caligula is now emerging from the waters, "My! My! My...actions...are...fate! Sacrifice your life! Sacrifice your flesh!"

"Geez, not him again!" Den-O shouted.

"Yeesh, for a crazed uncle… He is really persistent" Fourze muttered.

"Uncle?" Nero exclaimed with wide eyes.

Elisabeth look at Nero with a confused look, "What? Who? Nero's uncle?"

"He seems to be pretty "tangled up." That's how one should deal with Servants, I suppose. —-That's just bad taste." Stheno commented.

"Stheno-neesama…"

"Beautiful... You're beautiful..." Caligula grinned causing Elisabeth to have a disgusted look on her face.

"You popped out of nowhere and now you're hitting on girls? W-What's with you, I know I am an attractive idol and all. But acting like a lowly beast is the worst! What kind of royalty are you?"

"Hey, hey calm down Liz!" Beast and Zeronos said.

"Beautiful...Really beautiful! You are beautiful! I want to take it, lust over it, and tear it apart. Your purity, your divine beauty, everything! I want to trample all over you with my entire body! I... love...you, my beloved sister's child-—-Nerooooo!" Caligula shouted.

Nero bites her lips as she looks at Caligula, "...That's right. You are a beast. You are no longer my uncle! My uncle is dead. I still can't stop thinking about his regrettable death. But still, if you appear before me after being lost in death... ...Then I shall sing a requiem for you. Know it's
my duty as your niece, and as a proper emperor!"

The others are also getting ready with Mash saying, "Master, this is going to be a Servant battle. Your orders!"

Ritsuka then nodded, "You're right… You ready Sougo? Everyone?"

"Yeah…" They then start to attack Caligula, and while the latter tries to defend himself. He is overwhelmed by the combine might of the Heroes as the battle finishes. He started to mumble.

"Nero...Nero... My...beautiful...niece... You...are...so... very...beautiful... More so than...the goddess...of the moon... More than...the radiance of...the Holy Grail..." Caligula smile at Nero as he disappeared.

Nero now having a sad look on his face muttered, "Uncle... ...I've defeated the enemy commander, Caligula. I've slaughtered yet another pretender to the throne! What a splendid job. Thank you Mash, Fujimaru and Tokiwa."

"No sweat but are you all right with killing your uncle?" Kiva asked.

Nero then look at them and replied, "You really are kind, Wataru. But no need to worry, I am the emperor of Rome after all. Anyways, you guys have saved me so many times. I can assure you that the reward for the defeat of the United Empire's shall be grand. I won't send a monster and say, "Here, it's your reward.""

This caused Stheno to be insulted, "Are you talking to me? You, not a Servant, but a mere human? The queen of this era seems to be brave. You might actually be a proper hero. Oh, how I wish you were a man."

"No, I am not a queen or a hero. Listen well, I am—I am, the Fifth Emperor of the Roman Empire!"

"Yes of course, that's what I shall call you. The Fifth Emperor of the Roman Empire. As a special gift, I'll give you a real goddess' blessing. This time it won't be a monster. It is also my thanks, for taking out a Servant who was not a hero. Your enemy, this so-called United Empire, and the
gathering ground for their "emperors"— The United Empire capital. I shall tell you its exact location." Stheno revealed causing the heroes to be surprised.

"What you know it's location, Neesama?" Medusa asked.

"Do you really mean that!?" EMIYA said.

"This is...an unexpected reward. Good thing we got into the cave, eh guys?"

"Oh… Doc."

"R-Really?" Mash asked.

"Hey, Doc! The cave has nothing to do with this!" Den-O replied.

"...Y-Yes. T-That's right. Sorry." Romani apologized.

This caused everyone to be silent, with some of the heroes facepalming.

Ritsuka POV

Hours later in Italy, just near Rome

60 A.D

The others were walking home with Mash saying, "It won't be long until we're in Rome again. Good work on the way back, Senpai, everyone." This caused the others to smile.

"Why won't you go by horseback, Fujimaru, Tokiwa? I know, I should've provided a chariot. I apologize, the few soldiers left in my unit are brilliant, but none of them fights on chariots." Nero said.

"Hey what is all this all of a sudden?"

"Your Majesty, should I provide a chariot for the next expedition?"

"I'm sure we'll need one anyway. After all, next time we'll be attacking the United Empire capital!" Nero declared.

"Sir!" A Legionnaire shouted.

"Yes, yes." Nero replied.

"Your Majesty, we seem to be under attack. Enemy brigade up ahead. Multiple signatures." Romani shouted.

This caused the others to widen their eyes, "Here we go again…"

"That's strange... We're running into the same amount of enemies as before." Mash exclaimed.

"You're right. Even though we already regained control of nearby Gaul. Don't tell me they're attacking from the sea! If our scouts haven't noticed, then..." Nero widen her eyes.

"The scouts were discovered and killed. We might be dealing with an elite battalion. Well, that explains it. But if so, that would mean— It's as I feared. I'm detecting even more enemies now!"

Mash then shouted to the legionnaires, "Brave soldiers, please be safe. I'm going to do what I can."

"Good luck to you too, Miss Mash!" The Legionnaires replied.

"Your orders please, Master. Commencing battle." Mash shouted.

"Yeah, let's get them, Mash!"

As they cleaned up house, Nero noted, "Those soldiers just now— They're not like the ones we've run into before."

"You are right Nero-san, they look like Spartans by the looks of it."

"Not that they looked much different, but..."

"You're right I feel some mana within them." Wizard and Beast said.

"True, rather than human soldiers, they feel like Servants." Mash said with widen eyes, "Yet they're not really Servants per se. Doctor, do you have an idea?"

"I can think of several possibilities. Not good. Things like this are typically related to Noble Phantasms. And I don't mean typical Noble Phantasms. The type that's designed for use on the battlefield. ln which case—"

Suddenly Mash shouted to Ritsuka, "...Master, I'm sensing the presence of a Servant. There's one...no, several hundred! It's the same presence from before. But I can only tell that one of them is an actual Servant."

"Enemy attack! Several hundred enemy soldiers!" The Legionnaires shouted as they are now being ambushed by the Spartans.

"Is this an ambush? Where did several hundred enemies come from?" Nero shouted.

They then heard a voice, "It's not an ambush. I chose to defend this place, that's all." They saw Leonidas standing in front of them, "I will crush any and all enemies more valiantly than any attack, and far stronger than any defense. This is how we Spartans fight... You will soon experience it for yourselves."

"What the who the hell is this guy?" Den-O asked.

"Did you just say Sparta? Then you are—"

"Servant, Lancer. My True Name is Leonidas."

"Leonidas, as in the leader of the 300?" Zi-O gasps.

"He's not hiding his True Name. Just like last time, this is far different than a normal Holy Grail War." Romani muttered.

This caused the others to widen their eyes, "Leonidas? You introduce yourself as King Leonidas of Sparta?"

"Precisely. It is an immoral war, but I'm still going to destroy you."

"What! You are the legendary Leonidas, the guardian of the Hot Gates! So the "emperors" aren't the only ones who came back? Hmm, then what about Boudica?" Nero shouted.

"Stay focused on the battle, Nero-san!"

"U-Umu?"

"-Never mind that Nero, there are many enemies. We must strengthen our defenses!" Mash shouted.

"Yeah, keep your head in the game man!" Jeanne Alter and Artoria Alter agreed.

"U-Umu, our unit is quite small. I hope we're able to defend..." Nero smiled.

"If we defeat the main Servant, the remaining hundreds should be gone. In that case—"

"Master, it's a Servant battle. Your orders, please!"

"Got it, Let's do it Mash! Everyone!" Ritsuka shouted. The others nodded as they started to attack Leonidas and his mooks. The heroes then goes beast mode as the Spartans are well trained and well equipped. However, a few hours later the heroes strike back with the Kamen Riders, the Alter as well as EMIYA and Medusa.

Leonidas then try to attack them, only for him to be lacerated and slashed by Zi-O, Decade, Kiva, Nero and the Alters. Leonidas then said, "Just as I thought, huh? In a battle with nothing to protect..." He then disappeared leaving Nero in shock.

"He vanished? So he wasn't meant to exist in this world after all." Nero murmured sadly.

"...He was a formidable enemy. Just what you'd expect of the ultimate defensive Heroic Spirit." Mash said.

"I agree with you." Decade replied.

"Me too." Artoria Alter agreed.

"No signs of Servants or humans around us. No Phantasmals, either."

"That means you are all safe guys!" Banjou shouted.

"Then let's head back to Rome! Mash, Fujimaru, Tokiwa, you can hold your heads up high! Umu, you in particular Mash. Your skills aren't
as good as mine, but they are quite good."

"N-Not really..."

"Haha! Hold your head up high with pride! This is our triumphant return from Gaul, after all!" Nero smiled as the others have different reactions to this.

Author's Notes:

And that's about it everyone! Hope you guys like this chapter.