They Cast Out the "F-Rank" Son. Nobody Knew His HP Was 10 BILLION at Level 1

What the story is about

After being abused and cast out by his family, Su Lin discovers that his seemingly worthless health-enhancement ability can be altered into an absurdly powerful advantage. He uses his immense durability to challenge a deadly tower and dangerous fissures, while evading those who want to exploit or kill him and uncovering a larger threat behind the world’s trials.