In JJK With Naruto Powers - Chapter 106: Saving Nanami

Among the demons, the supreme ones are called “Great Saints.”

A young man leaves his mountain village and travels around the world. By unceasing efforts, he finally becomes a legend of the age.

- Description from Novelupdates

Her – a glutton without troubles or worries who crossed over and became a young fat chick with a deep vengefulness.

I became the villain in the story of a hero.

So I was about to quit after fighting the main character.

But she’s obsessed with me. Why…?

“What I want, the Heavens shall not lack! ”