``Return Note'' If you write down the place, time, and date you want to return to in that notebook, you can truly go back to the past. ``Because I didn't have sex with you that day, at that time, and in that place...'' You only get one chance... Have you ever missed out? ?

I got a mysterious notebook. It is something that allows you to actually return to ``that place'' by writing down the date, time, and place. Even though I'm half-convinced, I decide to go back to that day when I was just one step away from having sex. That day when I was alone with that girl from the same swimming club in the locker room, but I got scared and couldn't finish it, so I ran away, that day when I was in a sleepy state after drinking at a drinking party and couldn't help myself, those days after school when I was alone with my classmates who were drenched in a sudden torrential downpour, and the days when I received the devoted care of the woman who was the perpetrator of a car accident... There are countless missed opportunities. However, as long as I have this notebook, I can go to another world line that I couldn't choose that day! I'm sure I'll do it this time!