The story takes place on a campus. Among them, strong emotions such as love and regret can trigger the phenomenon of time travel under certain chances and coincidences. When a person has extremely strong feelings of remorse and guilt, if destined, the person with this ability can travel back to the day before the death of the designated person with the memory of the previous time and space, and get a chance to start over. However, it can only be used once, and it is still unknown whether it can actually change the ending after traveling back in time.
Intention: Thank you for always being there