Corpse Raider's Code

On the day I became a corpse hunter, my grandfather passed down seven rules to me. Don't go out on a night boat, don't fish out rootless corpses, don't pick up people who have died in vain… and don't refuse the seventh request. I complied very well until that day when I was forced to go out on the boat late at night in order to save my sister. On the boat, the female corpse that I picked up with my own hands slowly opened her mouth: "The rules have changed."