Tsubaki loves styling her younger sister’s hair every morning, yet she doubts that such a look would suit her own. On the day of the high‑school opening ceremony, she misses out on being the top student, normally the person to give the speech, so she sits beside the actual class topper of the first year, the rude Kyouta. After Kyouta insults her, she retaliates by cutting his hair. He demands she “pay him back with her body,” but Tsubaki responds by fixing his hair and shortening it even more. Finally, Kyouta unexpectedly kisses her and vows to make her his girlfriend.