For Xu Sanduo, the death of his comrade was something he didn't want to think about. But when that day came, Xu Sanduo collapsed to the point of crying. But after the collapse, there was no choice but to endure, and to stand up and continue living. Of course, for the dead comrades, they hoped that Xu Sanduo would be happy instead of carrying the past and continue living. Therefore, the "make up for regrets" system appeared. How should Gao Cheng, Wu Zhe, etc. Make up for their inner regrets? How to save Xu Sanduo? And can it satisfy the audience's inner regrets?
Concept: Regret is inevitable for everyone. Even the kings of soldiers have unspeakable regrets. If they have the chance, how can they make up for their regrets?