Transmigration: Starting with Chainsaw Man

Bai Huiguang transmigrates into the world of anime with explosive force. Fueled by his love of anime, he rewrites the plot and wins over anime girls.

In Chainsaw Man, he punches the Gun Devil and kicks the Darkness Devil. In Jujutsu Kaisen, he turns both Sukuna and Satoru Gojo into 2.5. In High School DxD, he claims every busty demon girl, punches the Red Dragon Emperor, kicks the White Dragon Emperor, and collects every Sacred Gear! In Shinmai Maou no Testament, he becomes the strongest in both Heaven and the Demon Realm!

The first world is Chainsaw Man, the second is High School DxD…

(In the Chainsaw Man world, he only gets Makima. He gets everyone else.)