The System Is Called Regret Medicine

[This article is pure black history. The author himself feels that he cannot bear to look at it, so please do not enter it] (This book is also called: "My Family Has Too Many Hosts") There are many people in the world who regret for certain people or things, but there is no regret medicine that allows them to start over. In order to save so many people who are unhappy and give them one more chance to choose and make up for their regrets, a system called regret medicine has emerged... (Ps: There is no male protagonist + no female protagonist in this article. I don't like to take detours, so please don't comment!)