My Golden Finger: Infinite HP

Games have invaded the world and people are awakening talents. Jovanny is a high school student with no money. His body heals from anything, without limit, and he has told no one about it. He sells years of his own lifespan for cash. The cash goes toward a class awakening, and the awakening takes. He comes out of it as an SSS-grade Sorcerer. The grade marks him out and other people start hunting him. He keeps the regeneration secret and uses it to survive what they do to him while he builds his strength. The ones who catch up with him get beaten down, and he goes on raising his strength.