矢神くんは、今日もイジワル。

Hinata Shizuku dislikes handsome boys and reluctantly approaches the popular Yagami during high school orientation as a favor to her friend. She mistakenly speaks to his twin brother Kaede, who has a sharp gaze and unfriendly demeanor unlike his charming sibling. Kaede abruptly demands that Shizuku become his girlfriend, catching her completely off guard. Though she firmly rejects his command, their unexpected encounter draws unwanted attention from classmates. As school life begins, Shizuku grapples with the complications arising from this mix-up involving the contrasting Yagami brothers.