In a world where every boy and girl has a special power called Iris, Toru who, as a result of not having any kind of special power, was bullied from a young age, lives by his motto: “low exposure” – to live without standing out. But his peaceful school life changes when he receives a certain "Confession" from the schools most popular girl, Koyuki. His motto begins to shake!! The school fantasy story that shakes the heart begins with their meeting.