The world has been targeted by a higher-dimensional entity known as the “Endlands,” which selects “players” and throws them into a ten-day, repeating death game called the “Annihilation Incubator.” On the very first day, the protagonist Lin Ke is “spoiled” the fact that he will be executed. Trapped in one reset after another, he must survive and grow stronger while gradually uncovering the shocking secret that he is the “Ultimate Boss.”