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One afternoon after school, the introverted Kiyomi goes back to the classroom to retrieve something he forgot. There, he witnesses Nanjo, a well-known gal, and a male student about to do something inappropriate. When the boy runs away, she invites him to join in, but the germaphobic Kiyomi flatly refuses. However, this only piques Nanjo's interest, and she begins to pester Kiyomi! But Nanjo turns out to be the ideal gal for an otaku...!?

The only solace for this young man, who has withdrawn into his own shell after a heartbreak, is watching his "idol" on stream. Then one day, he suddenly finds himself hiding from a girl who turns out to be his "idol"...?

Arase Itou has the ability to see a few minutes into the future, but the glimpses he sees are always linked to misfortune. With his kind-hearted nature, Arata decides to use this inconvenient power to help girls facing various troubles and prevent their unfortunate futures. However, Arase doesn't realize that, little by little, the girls are growing fond of him. And he remains oblivious to the quiet rivalries forming between them over his attention.