After Qi Ming, a veteran puzzle player, woke up, he was trapped in Room 501 of a strange apartment. There is a special group chat on the phone, which announces ten basic rules, and there are ten hidden terms waiting to be explored - once you violate any of the terms, you will be completely out of this trial space.
There are five floors in the apartment, with two households on each floor, and the ten participants each have their own thoughts. When the daily collective tasks start, there will always be people who leave completely during the trial. Mirrors, stairs, and old trees in the courtyard are full of unknown traps. Qi Ming's neighbor, Shang Lu, is lonely and taciturn, but he knows all the rules well. Qi Ming found a photo in the house: he and Shang Lu stood side by side, with "1095th day of acquaintance" marked on the back, but he had no impression of this person.
The number of people leaving the field continued to increase, and the hidden rules gradually emerged. Qi Ming finally realized that this trial was not random. Three years ago, this apartment also housed a group of participants, and his lost memory was the key to unlocking all the rules - those rules were written by him in countless reincarnations.
The countdown to the ten-day trial came to an end, and all the lies were exposed. When Phytolacca looked back at him before walking towards the crack on the sixth day, Qi Ming had to make a choice: to erase everything and leave safely, or to keep all the memories of reincarnation and keep the person who was never absent in every round.
Concept: Memories can be erased, but love is the direction of the heartbeat - it does not need to be remembered, because it never leaves.