Hassan of the Hundred Faces

When someone appeared as an Assassin, the most natural thing to do was either to run away when their opponent was strong or fight, killing the target the moment they appeared.

Either way, their actions needed to be swift and only a moment.

As they were assassins, fighting frontal battles definitely wasn't their specialty, but nevertheless, their reaction should be one of the fastest.

Yet, the moment he appeared, Assassin was in a daze.

Tamazuki was like the world.

He was like a God who descended on the Earth.

His existence was so bright yet warm, calm, and comfortable.

It was like having negative thoughts or the thought of killing him was impossible.

Moreover, there was also a sense of helplessness.

Ah... it is impossible to defeat him.

This thought came naturally on the thought of anyone who saw him.

Even Scheherazade, who had always been by his side, was startled when she realized this was when he was serious, and because of this, she knew his side had always been the safest in the world.

Still holding his sharp dagger; however, Assassin's arm dangling by his side showed that he had already given up.

The thought of fighting Tamazuki had never crossed his thought at all, thinking that he had already been defeated.

Moreover, due to his Noble Phantasm, Zabaniya: Delusional Illusion that separated his single entity into several of them, causing each of their power to become weaker than they were originally.

It might not be wrong to say that currently, Assassin was the weakest Servant in this Holy Grail.

"You are Hassan of the Hundred Faces, right?"

"Ye-Yes..."

While Assassin was stunned when his identity was known.

It wasn't something so surprising for the identity of Assassin to be known as it was normal for people to summon Hassan-i-Sabbah, or rather, most people would summon him as he was the most famous Assassin in the world.

Moreover, the word assassin originated from his organization.

Due to this fame, it wouldn't be weird to say that Hassan-i-Sabbah was known as the strongest Assassin Class.

However, Hassan-i-Sabbah had never been a single person.

Instead, it was a title given to all the people who had entered the Order of Assassin.

So because of this, even if one summoned Hassan-i-Sabbah, it didn't mean they were the same, and each of them was different, depending on the Master's luck.

As for Kirei Kotomine's luck, was there even a need to explain?

Nevertheless, the moment Tamazuki talked about Assassin's identity, it was impossible for Assassin to stay calm, or rather, all the Assassins, at this moment, almost lost their calm. After all, they were a single entity. Even if they were separated, they could communicate through their minds, exchanging important information or knowing when someone was in danger.

If Kiritsugu summoned this Servant, then he was like a fish that had entered the water.

"I will be straight." Tamazuki stared at Assassin and asked, "Will you make me your Master?"

"—What?!"

"........"

Assassin knew that a battle was meaningless, so he thought to relay all the information about this man to the other entities. After all, this man was a fearsome opponent, so they needed to tell their Master to prepare when they met this man again.

Yet, the words that came out from Tamazuki stunned all of them silly in a place.

Would you make me your Master?

In other words, Tamazuki wanted all of them to betray their current Master and make him their Master.

"I know your wish." Tamazuki was still as calm as ever. He was like a Messiah who guided this chaotic world into a better place or a pope who guided a lost lamb, or a father who looked at his son in love.

"to have a perfect and unified personality.

"I will help you with that wish."

"......."

Assassin was silent. His mouth was closed and opened like a fish in the aquarium, showing how dumbfounded his situation currently was.

His Noble Phantasm, Zabaniya: Delusional Illusion, was born due to his affliction of Multiple Personality Disorder.

Because of this, each of the entities summoned by Assassin's Noble Phantasm has their own personalities, and their experiences are not shared between them unless they want to share them.

Naturally, the meeting with Tamazuki was something that they needed to share.

Yet, at the same time, the words that came from Tamazuki's words, which were their real wish for the Holy Grail, shook all of them.

To have a perfect and unified personality.

This is what they wanted the most in their lives.

Hassan of One Hundred Personas is one of the nineteen people to hold the legendary Persian title of "Old Man of the Mountain."

He was a candidate to become the next leader of the Assassins, along with No Name Assassin, but he was chosen due to their fear of her. Their official reasoning was that even though she copied the eighteen previous Zabaniya abilities, she had not produced a miracle of her own.

However, due to this experience, he knew he wasn't the opponent of No Name Assassin, and because of this, he wanted to become stronger.

Having a perfect and unified personality would definitely bring them even further.

Because of this, their will was shaken when Tamazuki said their wish.

Unlike the other Hassan, he had many personalities, and each of them was different, so it was impossible for all of them to be obedient to their Master, especially when their Master had sacrificed one of them in the beginning. After all, even if he could become many entities, they weren't copies, but all of them were single individuals, and when one of them died, it was impossible to return any longer.

In other words, when one of them died, then they died.

Frankly, he had been thinking about having plotted to hijack the Holy Grail before either Kirei or Tokiomi in the event the War had gone in their favor, but his meeting with Tamazuki changed everything.

Facing this man, did the meaning of resistance even have a meaning?

Everything was meaningless.

"You don't need to answer me right now. However, if you agree, you can give him a signal here."

Tamazuki gave him instructions on how to agree to his invitation.

If they don't agree, then that's it.

He was going to kill them.

That's all.

"Also, this is the plan if you agree."

Tamazuki also gave him a paper, telling him what their plan would be if they agreed to become his Servant.

He nodded obediently and didn't even raise a question since everything was clear.

"Also, you are going to follow Kiritsugu, right?"

"Yes."

"Then, bring this with you."

"This is... a bomb?" While he was wary, Assassin accepted the box from Tamazuki, but Assassin's eyes twitched when he realized the content of the box. It was clear that the thing given by Tamazuki was a bomb—or C4 explosive, to be exact.

"Kiritsugu is going to destroy a building with a bomb later. With your ability, it isn't going to be hard for you to add this bomb to that building, right?"

"...can I ask why?" Assassin didn't mind since this work was easy for him, but then, why?

Why did Tamazuki want to add more bombs to the building that wanted to be destroyed by Kiritsugu?

"As it is a firework, the merrier, the better, right?"

His answer was ambiguous, but Assassin didn't question him any longer.

"Then, good luck with your work."

Several leaves surrounded Tamazuki and Scheherazade as they disappeared without a trace.

Assassin stayed for a moment, observing his surroundings for a moment before giving up and continuing with his work.

But—

"By the way, let your Master meet Kiritsugu later."

Assassin almost fell to the ground before he looked around once again and held his head, realizing Tamazuki was talking through his brain directly.

"......."

Assassin sighed and thought that the answer to his invitation was obvious, right?