『If you press this button, you will enter the world of the genre I sell. (It may appear when the story is finished. However, it may not be possible if it is not completed.)』 A trivial post posted on a SNS timeline. The problem was that everything was fun because it was exam period. I think I quickly clicked 'Share' and called my friends and fell asleep while chatting. … … I should have just fallen into a deep sleep. “Byung.” what. “Beep!” what! Where are we?