No one's POV

Sora with his new Balance Breaker had appeared right before Gilgamesh and Cao Cao. He has finally reached the level where he could used his Balance Breaker while also equipping his Promised Victory. And finally, he could hear Merlin's voice inside him.

Merlin: You've done it! You've unlock your potential!

Sora(mind): So this is the power that Mother has left for me. And Draco's true power!

Draco: Yeah. I feel it too, partner. This nostalgic feeling brings back memories. This is my original aura, and your aura have fused into one!

In his own mind, he saw Merlin smiling at him. And another person standing there.

Merlin: The door to your potential has opened.

Sora: Merlin, thank you very much.

Merlin: There's no need for thanks. You are the son of our King. It is only natural for us to help. And now, we'll finally be able to go.

Sora: Go? You don't mean...

Merlin: Yes, the remnants of our feelings held us here, but it's time for us to break free from this Sacred Gear.

Sora: But, I still have tons of question to ask. What kind of person my Mother is? Where is she right now? If possible, I want to go look for her.

Gawain: You'll be fine. Your Mother is exactly like you. Personality, looks, all together. And as long as Draco and your friends are with you. Now go forth, Black Dragon Emperor. Prince of Knight.

Sora: Merlin, Gawain.

Gawain: If you ever meet your Mother, tell her that, me and Merlin never gave up.

With that, Merlin and Gawain left, leaving Sora behind as he stretch his hand out to stop them only to no avail. He let out a sad expression before returning to the real world as he glared towards his opponent. His power continue to rise every dying second, while also distributing his own power to the rest.

Gilga: Wha—

Cao Cao: What is this?

Cao Cao and Gilgamesh were still in the state of shock that his Ea was blown away. And as soon as they opened their eyes, Sora was rushing towards them with his Excalibur in hand.

Sora: HAAAAAAAAAAAAAAAAAAAAAAAA!!!!!!!!!

Sora pour every once of energy he had in his Excalibur. The sword itself shines brightly through the night sky. As if night itself has turned day as the light covered the whole of Kyoto city.

Gilga: Damn you! Cheap tricks like that!

When Gilgamesh saw that Sora was rushing towards them, he went to charged Ea once again to fight against Sora's Excalibur.

Sora: EX.....

Gilga: Enuma Elish—

Sora: CALIBUR.....!!!!

Before Gilgamesh could even fired his Ea, Sora was already in front of him as he brought his sword down, striking Gilgamesh down, hitting him straight for the chest wounding him.

Cao Cao: Gil—

Atalanta: Look out!

Cao Cao and the rest other than Gilgamesh was barely able to dodge Sora's Excalibur full power as the power of its Excalibur completely obliterated the space between them.

Heracles: Whoa...

Siegfried: What destructive power. It even warped this dimension.

Atalanta: What about Gil?!

They saw Gilgamesh were lying on the ground, with a huge slash right in his chest. Without a moment sooner, Sora rushes in with over thousands of clones all rushing towards Cao Cao and the other Hero Faction.

Sora: CAO CAO!!!

And with that, the real Sora who was holding his Excalibur along with his clones rushed towards Cao Cao with rasengan in hand.

Sora: MASSIVE RASENGAN BARRAGE!!!

Sora along with his clones all rushes towards Cao Cao. Hitting them, sending them flying into the air one by one, Sora hit them all with his Excalibur once again, Siegfried was hit straight in all his Balance Breaker arms, destroying them. Atalanta was next as her bow was completely annihilated. And finally, Heracles, as his armor of Balance Breaker was obliterated. As the three of them were sent flying straight to the ground.

Cao Cao on the other hand, saw Issei flying in the air. Thanks to Sora, Issei managed to opened his own potential. The power to changed between the three other chess pieces. Bishop, Knight, and Rook. As he managed to block Cao Cao's spear and sent him flying.

Issei: Mode Change, Welsh Draconic Rook!

Cao Cao: Guh...

Sora: So this is our new power.

Draco: That's right. The power released thanks to Avalon. And the power of the Black Dragon Emperor, allows you to entered what you called, Mode of Holy Sage.

Ddraig: And the power released as the Red Dragon Emperor, and the Evil Piece inside Issei allows you to promote without a King. Triana.

Issei: But it's a huge power drain. At this rate, I can only maintain the armor a bit longer.

Sora: Well, it's over anyway. Issei, take care of Cao Cao.

Issei: Right.

Sora said while walking to Gilgamesh who was laying on the ground. It appeared that he was completely immobilized. He look weakly at the the boy standing atop of him.

Gilga: Avalon... The utopia the king is said to have entered after his death... Something that keeps even the true Longinus at bay... The ultimate protection that nothing can penetrate... So that's the power that Artoria has left for her child... That's the legendary power of the holy sword, eh?

Sora: Gilgamesh. Your done. Your sins is unforgivable. The other might detest you. But, I'll always remember about your sin that you have caused me and my family, especially my Mother. And I will keep reflecting on it.

Gilga: Hmm... What an abominable boy you are... Just like your Mother. Defying me... until the end... But, I shall allow it. There are things that are beautiful because one cannot possess them.

Gilgamesh started to shine. As sparkles of light appeared from his body as he was slowly disappearing into the air, but he continue to smile.

Gilga: Farewell then, Prince of Knight. May we meet again in the future...

Sora:...

With that, Gilgamesh disappear into particles of light. The Hero Faction were lost for words. Gilgamesh is gone. It is not for certain that he is gone for good. There might be a chance he might appeared again in the future.

Sora(mind): Next time, if you appeared before me again, I'll be ready.

Atalanta: Oi, Gil—

Sora then looked towards the other as he stood, with Issei and the others standing behind him.

Sora: So, what are we going to do? Do you still intend to fight...? You have lost...

Cao Cao was the only one left standing. Siegfried had lost his Balance Breaker arm, Atalanta, lost her bow and arrow, and Heracles who had lost his armor. Sora's team had been completely healed. Ready to face off against Cao Cao who is the last one standing.

Cao Cao: Tch! You killed Gil! I would like to avenge him, but it seems the time has come.

Soon, a bright yellow light fills the sky. They all look up to the sky and see a tear, as if a dimensional rift was opening.

Sora: Th-This is!

Cao Cao: It looks like things have started. Georg, prepare the Dragon Eater...

Suddenly, Cao Cao looked surprised that it isn't Great Red that appeared. Instead, it looks like a green Chinese Dragon.

Cao Cao: No. this chi. It can't be! Mischievous Dragon Yu-Long!

Issei: Yu-Long?

Sora: One of the 5 Dragon King!

On top of the Dragon's head was a man wearing a red cloak. He leaps off of the Dragon's head and land next to Sora and Issei.

???: Oh, it's been awhile, holy spear wielder. Eh, where is that damn, Demi-God?

Sora: He's gone.

???: You defeated him...? I'm impressed. Not even your Mother could accomplished such feat. And from the looks of it, my help was not necessary.

Cao Cao: Well, well. The Great Victorious Fighting Buddha. I never expected to see you here.

Buddha: Ya little brat, your prank has gone too far. Some Heroes rise up to become deities, while the descendants of others become the poison of abnormal businesses. As they say, a champion for only one generation. Right, Cao Cao?

Cao Cao: Poison, you say? If someone gets labeled as poison by you, I am sure they could boast quite openly.

Buddha: Hmph. Leave the rest to me, the first-generation Sun Wukong. But from the looks of it, my help is not necessary.

Sora and Issei: First generation, Sun Wukong?!

Buddha: Black and Red Dragon Emperor brats. You did good. Especially you, Prince of Knight.

Sora: T-Thank you.

Buddha: Yu-Long, take care of the nine-tail.

Yu-Long: Sure.

Yu-Long then focused on Yasaka, who's movement was being restricted by Saji.

Yu-Long: Hey, hold on! The one fighting the fox is Vritra!

Buddha: That's right, go help him. After this, I'll fill your belly with Kyoto cuisine.

Yu-Long: That's a promise! Come on! Come on! Don't underestimate a Dragon King!

Yu-Long flew towards Saji helping him stop Yasaka from going on a rampage.

Buddha: Well, then. Time for your punishment.

Siegfried: You monkey!

Siegfried drew his blade, as he wobbly attacked Buddha. His body haven't fully recuperated after being hit by Sora's Excalibur, making his attack more transparent.

Buddha: Extend, staff.

Sun Wukong's staff extended and it strikes Siegfried's stomach, causing him to fly back as he grunt in pain. Flying a few feet back, he crashes into the ground, causing a large impact, forming a crater underneath him.

Buddha: Your back isn't in it. Start over with some training runs.

Soon the same purple mist that causes the dimensional rift to occurs started surrounding the Buddha, trying to put him in an alternate plane.

Buddha: Heavenly path, with a clap of thunder through the jaws of a dragon. Lay upon the land.

With bang of his staff towards the ground, the purple mist is completely dispelled. And suddenly, a howl comes from the nine-tail. They look over to see her struggling against both Vritra and Yu-Long as the two Dragon King were overwhelming her in many ways.

Buddha: Oh? Looks like things are finishing up over there, too. Things are almost over now that the nine-tail has lost her blessings.

The Buddha sense an attack coming. Cao Cao had thrusted his spear forward when he saw his enemy has lowered his guard. However, the monkey king simply stopped it with his finger.

Buddha: You can't kill the other Buddhist Gods with a spear I can stop with my finger.

Cao Cao: Looks like your monstrous health is still well.

Georg: Cao Cao, let's stop here. Gil is gone! Without him is hopeless!

Cao Cao: Time to retreat, huh?

Cao Cao leaps into his allies.

Cao Cao: We'll stop here for now.

Issei: Hold on a second!

Sora: You think we'll just let you get away!

Issei formed his left arm into a cannon. As for Sora, he once again charged his Excalibur.

Issei: Just one! We just want one attack to reach him!

Buddha: You both are going to take on my duties? Well, that's fine.

Issei and Sora launches one final attack at the retreating Cao Cao, with Issei and his Dragon Blaster, and Sora with his Excalibur.

Both have launch their final attacks, Heracles and Atalanta went to shield Cao Cao, to where they were blown by Excalibur, allowing Issei's Dragon Blaster to make a clean hit on Cao Cao, which takes out his right eye.

Issei: Alright!

Cao Cao turned furious the moment he got hit as he glared at Sora and Issei.

Cao Cao: Black and Red Dragon Emperor!

Suddenly he started to chant.

Cao Cao: Spear! Holy spear that can even pierce the Gods! The ideals of the King of domination that sleeps within me!

Siegfried: Cao Cao!

Siegfried intervene before Cao Cao could finished his chant by covering his mouth.

Siegfried: It's to early to show Truth Ideal! Leonardo has probably reached his limit outside, as well.

Cao Cao: I know that. Black Dragon Emperor, Sora Pendragon. And Red Dragon Emperor, Issei Hyoudou. Get stronger. Stronger than Vali. When you do that, I will show you the true power of this spear.

Sora and Issei:...

Cao Cao vows revenge on Issei and Sora and tells them to get stronger before fleeing. Sora and Issei breathes a sigh of relief and look towards the exhausted Yasaka. After exhausting Yasaka, she falls unconscious despite the spell being lifted. Kunou huddle over to her Mother, cradling the large tail in her hands, slowly letting the tears out.

Kunou: Mother! Mother!

Buddha: Hey Red Dragon Emperor. You have the power to hear the voice in a woman's chest, right?

Issei: Y-Yes, I do.

Sora: 💢

Buddha: I'll help you. Can you place that spell upon the little lady and the nine-tailed princess?

Issei: I-I understand!

With Sun Wukong ideas of using Issei's Booblinguial and his power, they were able to make an interaction hwit Kunou and her mother.

As Princess Yasaka metamorphoses back into her human form, Kunou hugged her mother and everyone rejoiced.

Sora:...

As Sora continues to watch the scene, he felt his heart aches a little. Seeing Kunou and her Mother embracing one another. He wanted to feel that sensation too. The feeling of a Mother's warmth. The boy only looked down saddened, which was noticed by the Monkey King.

Buddha: Hey, Pendragon...

Sora:...Huh?

Buddha: A message from Artoria...

That left Sora surprised.

Sora: From Mom...?

Buddha: Yes. She said "I'll see you at the top. And thank you, for finishing my work". That's all...

Sora:...

(Timeskip)

The next day, at Kyoto station. The school trip has finally ended. Sora and his friends are on their way back home, where they were sent off by Yasaka, Kunou, Serafall, and Shella.

Yasaka: Sir Azazel. Black Dragon Emperor. Red Dragon Emperor. As well as the members of the Gremory family. You have truly helped us greatly, I thank you. After this, I plan to meet with the Great Victorious Fighting Buddha, Lady Leviathan, and Lady Shella. I wish to cooperate with everyone so that Kyoto will never again be in the grips of terror by such people.

Azazel: Yeah. We look forward to it, Great Leader.

They all shake hands, an agreement of peace between them.

Serafall: We'll enjoy Kyoto with them a bit more until the meeting.

Shella: Everyone, have a safe trip home. And Sora, tell Maria to do her job as a Succubus properly~

Sora: -_- Never...

Kunou: Black Dragon Emperor...

Sora: You can just call me Sora.

Kunou(blush): Sora, will you come to Kyoto again?

Sora kneel down on the same level as Kunou and patted her head.

Sora: Of course, I'll return.

Kunou: You must! Kunou will always be waiting for you, Big Brother!

Sora: Yeah!

Soon later, Sora and the rest of the Gremory family returned home with Azazel and Sora says his goodbyes to Kunou, promising her to see her again sometime.

(Timeskip)

Later that night, after the train arrived at the station that was in the same area as Kuoh Academy, everyone was gathered in Issei's mansion where Rias, Akeno and Koneko were displeased of how Sora did not contact them after Kinkaku-ji.

Rias: Why didn't you let me know?

Sora: Um... Well...

Akeno: You told us you would contact us again after Kinkaku-ji. And then, nothing.

Koneko: Yes, you were so distant.

Gasper: B-But everyone managed to come home safely...

Kohaku: Well... All wells ends well.

Azazel: Well, Sora met a new woman there, too. And the daughter of a nine-tailed fox no less.

Sora: Hey! That's not true! She just sees me as an older brother at most!

Azazel: But, looking at Yasaka, I bet that girl will grow up as quite a well-endowed beauty.

Sora: Stop saying that! If anything, you should be saying that to Issei! Who still sulking after not getting a chance to see her softly chest!

Issei: Hey! Th-That may be true! But, I don't have any interest in little girls! Gyah!

Koneko had punched Issei in the stomach.

Issei: Why?

Sora: Disrespecting someone.

Azazel: Well, Rias. Sora and Issei both have powered up in Kyoto, so why not forgive them?

Rias: Hmm... Well, I suppose...

Azazel: Now we have the school festival to look forward to. By the way, the daughter of the Phoenix Family will transfer into Kuoh Academy around that time.

Sora: Ravel will? Seriously?

Azazel: Yeah, she was greatly impressed by Rias and Sitri and wished to study in Japan. She will be a first year like Koneko.

Koneko(pout): I don't care.

Sora: Are jealous— Gah!

Koneko suddenly punch Sora as well.

Sora: What did I say?!

Koneko: Nothing.

Sora: But, why the sudden transfer?

Azazel: Things are tough for all of you.

Sora: More rivals...

Rias: Well, it's fine. I guess it is enough that you all have returned safely. And we have the Rating Game with Sairaorg to worry about. We need to focus on our preparations for it.

Everyone: Yes!

Sora looked at his hand and turned them into a fist as he was determined to win the fight against Sairaorg in the upcoming Rating Game.

Sora(mind): I will, along with everyone else, we will definitely sure to beat Sairaorg.