The male protagonist and the female protagonist were childhood sweethearts, but the female protagonist traveled to a parallel time and space at this time, where she met your childhood sweetheart. Well, you two didn't know each other in that parallel time, but you were actually in love. Your best friend becomes your best friend, and your best friend becomes a villain, and there are unexpected surprises when you return from time travel.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.
