The killer is reborn and travels back in time. The protagonist demonstrates by example how to change from a cold-blooded killer to a tease who loves to complain and is good at blowing things up in just one chapter. (Prepare to destroy the protagonist O(∩_∩)O)
It's just a joke for newcomers, I doubt I can write ten chapters.
I've written ten chapters, forget it, I can't finish it anyway.
Hahaha, no one is watching anyway╭(╯ε╰)╮