When Shen Jing woke up, he found himself trapped in a convenience store with no exit. The rules on the checkout counter change with the number of times they are read. There are store clerk uniforms with name tags hanging in the freezer, and someone must complete the "night shift" before three in the morning.
Former emergency doctor Shen Jing is used to dismantling rules calmly, while former rescue team member Lu Yan is good at trying to find a way out of danger. One is afraid of losing important people again, and one has long since stopped taking his own life seriously. The two were forced to cooperate in a strange dungeon. From testing each other to breaking through the game side by side, they gradually discovered that the so-called Err retrospection game was not a simple death game, but a set of rules that used pain as the anchor and constantly replayed human regrets.
What they have to do is not only to get out alive, but also to pull each other back from the ruins of the past while looking back again and again.
Intent: Pain is not the end point that traps people. Understanding, companionship and choice between people can allow people trapped in the past to move forward again.