Seven Days Reincarnation

Every city in the world will collapse randomly - the collapse area will be a street, a building, or even a subway car. The selected people are trapped in a 72-hour time loop and must find a hidden truth/item/person at the anchor point to escape. And in every reincarnation, one person dies, and the body remains in the cycle forever. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.