Hiromiko Zawa, a first-year high school student and the main character of the novel, is trying her best to promote a club dedicated to the study of parallel realities, but everyone considers it a silly idea, so the girl's dreams are close to being shattered. However, miracles do happen, which means that parallel reality is already close. This probably means that another reality is a game. Game no game.

[Translated from Anivisual]