Infinite Doomsday: Foresight, Immortality

[No goody-two-shoes + conditional immortality + no deadweight + foreknowledge]

(Also known as: 108,000 Ways for Humanity to Die)

An endless cycle of reincarnation, each turn a soft whisper from the Grim Reaper.

As long as even one human remains alive, he cannot die.

"Seriously? You useless lot can't even work together. How did the zombies wipe you all out again?"

"Everyone's frozen into ice sculptures? Does that mean I can do whatever I want? But..."

"A planet's going to crash into Earth? Forget it, I'll just restart..."

"Aliens are attacking? A relativistic kill vehicle? Wait, I need to give them an internationally recognized friendly gesture..."

"..."

After witnessing humanity's repeated extinctions, Yin Guo, who has gained the ability to foresee the future and the power of immortality, resolves to save humanity (not really) and break free from his fate of being "immortal."