The 733Rd Reincarnation

Giant black doors appear all over the world at the same time, and those who step into it enter the "reincarnation space" - a training ground composed of countless dead copies. Former criminal investigation captain Lu Shen accidentally entered the door while investigating a disappearance case and received the talent "Eye of Truth", which allows him to see through loopholes in the rules of the dungeon. He led his teammates to survive in dungeons such as abandoned hospitals, death towns, and mirror worlds, but discovered an disturbing fact: all reincarnators have lost their memories before entering the world, including himself. There is a pair of eyes watching everything in the copy - an existence called "Observer". And Lu Shen's reincarnation number ends with "0", a number that shouldn't exist. Deep in his memory, it seems that the key to the truth about the reincarnation space is hidden. As the team gets closer to the truth, sacrifices and betrayals ensue. Lu Shen discovered that the reincarnation space was not a training ground, but the last legacy of a civilization that was about to collapse. The observer is the remaining artificial intelligence of that civilization. It is screening successors-and also preventing a truth that could destroy the universe from emerging. Some doors, once opened, can never be returned.