Immortality: Ability Inheritance

The takeaway boy Shen Ji was in a car accident while delivering food late at night and was supposed to die. But when he opened his eyes on the iron bed in the morgue, there was a black mark "death mark" on his chest. From then on, he discovered a cruel rule: After each death, he inherits an ability from the previous corpse. The more extreme the cause of death, the stronger the ability. But the price is that he must die again.