Dead characters are perhaps only pretending to have died, or maybe it was some other character who died instead. It is even more likely that they have simply been resurrected through taking over a living person, reincarnation, reattaching severed body parts, or being subjected to magical cures.
比如做了阿公的葉小釵依然俊美如少年；已經死亡的角色，可能是詐死、可能是旁人頂死，更可能藉著附身、轉世甚或把頭接回去或靈石復活。