Blue Star has been bound to a system called Chuan Chuan since he became conscious. The only thing he remembers is his own name. In order to find himself, he has to reach an agreement with the system and go to various time and space that are disrupted by time-travelers, reborn people and other uncertain factors to maintain the order of time and space. However, why has the time and space he visited recently been unable to escape the fate of being destroyed? (1V1)