Li Lei, who died from nuclear radiation, traveled to Demon Slayer: Kimetsu no Yaiba and became the Lower Moon 5 Lei, where he met Muzan Kibutsuji.

Facing the Ghost King who can read minds, he survived because of his special physique?

He also gained the favor of the Demon King Muzan. After that, he lived in Demon Slayer. During his time in Demon Slayer, Li Lei discovered the evil of people and the helplessness of becoming a demon.

If it is instinctive for ghosts to eat humans, then it is pure evil for humans to eat humans.

Soon Li Lei discovered that he had great power and could kill those who disliked him at will and save those who had a tragic fate.

From then on, Li Lei liked to become stronger. For this reason, Li Lei would try every possible means to become stronger, so strong that no one could hurt him, so strong that the world would revolve around him.

Whether it's the breathing techniques of the Demon Slayer Corps or the blood demon arts of the demons, they will all be nutrients for one to become stronger.

Use everything you can to surpass the Demon King Muzan and become the ultimate life form

Li Tian awoke to find himself in a new world. Here, ancient martial arts, powerful mechs, mysterious superpowers, and mutated gene warriors… In this interstellar age of exploration, everything seemed prosperous and full of hope, but beneath this calm surface, turbulent undercurrents surged. Secret cults, star beasts, ancient gods, shadows… they had long since infiltrated every corner of the world, hiding beneath the surface, growing stronger and more powerful. …Fortunately, Li Tian possessed a class panel; with diligent practice, he would reap the rewards. From [Transmigrator] to [Lord of the Heavens] traversing the realms, from [Martial Artist] to [God of Martial Arts] who could shatter stars with his fists, from [Psychic] to [King of the Four Forces] who controlled the rules… In the zombie world, he was an unrelated figure who obtained everything. In the horror world, he was a holy being who purified everything. In the Warhammer world…

(Original title: A pioneer trying to be a hero)

What? Using the Pioneer PF game template to fight in other worlds? Is there such a good thing?

Oh, it looks like a live game broadcast, and the audience are gods?

Then I should be more popular if I play a hero.

Please reward me and pay attention to me.

That's right, I was just pretending to be a hero in order to gain more benefits. I'm just a hypocrite and can't be a hero. It's impossible.

(The first world is A Certain Magical Index, the second world is to be determined)

(similar to DND, TRPG)