Reincarnated as a Ghost, I Decided to Bind Myself to the Villain

On the day Bai Lan graduated from elementary school, he met a little ghost who called itself the "Villain Cultivation System." It claimed it would train him to become an excellent big bad, the kind who absolutely never cheats.

Curious about the existence of a "ghost," he played along completely and gradually welcomed all kinds of "animals" the little ghost brought home.

But one day, Bai Lan suddenly shared memories with himself from a parallel world...

The parallel world's subordinates: the real and fake Six Funeral Wreaths, a wealth of talented people. Whatever else they were, at least they were all human.

The subordinates in this world: a ghost, a pretend little white rabbit, a "real" goat, a frog, a wolf... everyone except an actual person.

They can read minds (rabbit), never die no matter how many times they're shot in the head (goat), use illusions (frog), and control other people's bodies (wolf)... Those are about the only things worth mentioning.

His daily life in the parallel world: conduct research, scheme to absorb other families, collect the 73, rule (and destroy) the world.

His daily life in this world: conduct research, soothe the troublesome ghost, and help her retrieve her rabbit, her goat, her frog, and her wolf from other families...

Bai Lan: Are you really trying to train me to become an excellent big bad?

The little ghost, innocently: Aren't you already one?

Bai Lan: ...

He's now the only Bai Lan who became friends with Tsuna-kun and the others. He did meet the requirement of "the great villainous boss is friends with the protagonist's group." But is he a villain?

The little ghost planted her hands on her hips and retorted indignantly: Was I the one who stopped you from being a villain? Was I?

[About the joint family outings that somehow became a regular tradition for the two families]

The little ghost: The outing destination is Meteor City's junk mountain!

The Varia and the Vongola: Huh? So it's a wilderness survival level.

The little ghost: The outing destination is Heaven's Arena!

The Varia and the Vongola: Mm, a tower-climbing level.

The little ghost: The outing destination is the Hunter Exam site!

The Varia and the Vongola: Yikes! It's the annual remastered death-trap level.

The little ghost: The outing destination is Greed Island!

The Varia and the Vongola: Yay! A card-collecting level.

The little ghost: The outing destination is the Dark...

The Varia and the Vongola: Shut up!!! Are you trying to send us back to your homeworld to be served as a feast?!!

Theme: Different experiences create different lives.