S-Class Ghost Baby? Just My Pet

I Am of the Light, but I Have Fallen into Darkness

I want to read a book similar to "Conan: I Worked as a Second Model Worker in a Winery". Originally in the light, I was forced to fall into the darkness. There is no way to go back. I gave up on the light and tried to live in the darkness.

Hei Hua Wen Became the Enemy of the Whole World After Being Betrayed

Is there an online story where the protagonist makes great contributions but is expelled from the organization because he has triggered the interests of certain people? After the protagonist goes dark, he comes to take revenge.

Recently I Want to See the Main Character Become Darker.