(Anime Crossover) When I Had No Choice but to Transmigrate into a Manga Character

At seventeen, Wu Qianhua was accidentally struck by a student who jumped from a building after failing the college entrance exam, and died on the spot.

Did Wu Qianhua want to die? No.

Did Wu Qianhua want to live? Yes.

Had Wu Qianhua done anything wrong? No.

The only mistake was that he happened to be walking by, and got hit by the poor kid who jumped.

The Ox-Head and Horse-Face spirits thought it over. Neither wanted to take the blame. No one could have expected this accident to happen before his allotted lifespan was up. So they decided to toss him into the world of manga, where he would play missing characters and gather enough energy to take on different secret identities. Eventually, the energy would build up enough to bring about a qualitative change and let him revive beyond the normal limits.

After all, if he were reincarnated in the real world, the truth would be exposed immediately, and the King of Hell would have a hard time explaining it.

Wu Qianhua: "Will I revive in this world?"

Ox-Head and Horse-Face: "Yes."

"Will I revive with all the abilities from every secret identity I've had?"

"Yes."

"Okay, then I'll take the deal." Wu Qianhua was delighted.

He was an orphan with no ties to hold him back, so starting a new life under a different identity would be completely fine~

Besides, with his knowledge of the plot, it would be easy to change the story and earn energy, right?

So when the System offered compensation for its mistake, he happily got his secret identities for free.

Jujutsu Kaisen was missing a Suguru Geto, so he went in to fill the role.

Geto Suguru, a.k.a. Wu Qianhua: "What brain in a jar? It's a curse, so it's edible, right? I'll eat the brain first, then Tengen. That'll free Tengen's barrier. The strongest is still my good buddy, so why should I care about the jujutsu world? I'll just launch a golden age of jujutsu education for everyone!"

The main Bungo Stray Dogs world was missing an Odasaku, so he went in to take over.

Odasaku, a.k.a. Wu Qianhua: "What tragic deaths? If I save everyone in time, there won't be any tragedies. The book hasn't even been finished, so I can rewrite the ending myself. First, I'll bring Chuuya over early and raise him as my little brother, then get Dazai into the Armed Detective Agency. You like diamonds, huh? I'll make sure you can't get your hands on either of them! And when I've got free time, I can write books. Why be in the Mafia? I'll just usher in a golden age of literature!"

The Bungo Stray Dogs alternate timeline was missing a Mori Ougai, so he went in to fill the gap.

Mori Ougai, a.k.a. Wu Qianhua: "What Three-Stage Plan? I'll make Yokohama my anchor and use its economy as a launchpad, spreading across the whole of Japan! I'll bring every diamond under my control. As long as I have all three kinds of talent, military, technical, and intellectual, I'll have enough wealth to enter politics! I'm not just talking about turning the whole country upside down! Let me think: how much land should the new country take by force, and what should it be called?"

The System was so full it was about to burst. "No more, no more! There's already enough energy to make me explode!"

Wu Qianhua looked pleased. "If there's too much, help me level up again."

"You're, you're, you're breaking through the limit!" The System turned into a screaming chicken.

"Isn't that great?" Wu Qianhua looked at his now immensely powerful body and the overwhelming energy coursing through it, feeling fantastic.

"No, there's really too much energy. I raised you to level 3.5, and there wasn't enough left to raise you further, but there was still a little less than a fifth remaining. Even that was too much, so it elevated the worlds you were in at the time, too!" The System was on the verge of tears.

"...What?!"

Thinking about the mess he'd left behind when he breezed out, Wu Qianhua was on the verge of tears, too.

Even if he became the strongest, he couldn't easily escape the ties of the heart.

He had to figure out how to face the three worlds' three-way showdown.

Theme: Emotions are the deepest bonds, and the strongest weapons