Back to the time when I was young and ignorant.
Today is as unremarkable as ever! Go to work in the morning and get off work in the afternoon. I looked back and seemed to have seen everything, but I didn't know what to do.
Mystery: The unknown mystery seems to have been seen, giving this person a chance to go back to the past. Maybe it will happen again!
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.