I Was Imprisoned at the Beginning, but I Decisively Made a Contract with the Eight Demons

This is a weird world of immortality. If you want to live a long life, you have to make yourself weird. In this world, betrayal is the norm for cultivating immortals, and weirdness is the normal way to open up. But Lu Yan contracted the eight demons, and his weirdness is unimaginable. Villain A: I obviously chopped off your head, why are you still alive? Villain B: I've obviously crushed your heart, so why can you still stand up? Villain C: I obviously threw you into eternal purgatory, why are you still alive? Su Xueying: I clearly saw you being torn to pieces by a group of monsters. Why are you still alive? In response to everyone's shock, Lu Yan just responded with one sentence: Because I don't want to die yet.