琴月円（Kototsuki_Madoka）/妻しぼり（Tsumashibori）

琴月 円

幸介のお見合い相手。咲良の妹。 勝手に決められた見合い話に、かなりご立腹で幸介の粗探しをして、一秒でも早く出て行きたいと思っている。自分よりも姉の咲良と仲良くなっていく幸介に、複雑な想いを抱く。

Kototsuki Madoka

Kosuke's prospective marriage partner. Sakura's younger sister.

She's quite upset about the arranged marriage that was decided without her consent, and is constantly looking for flaws in Kosuke, wanting to leave as soon as possible. She has complicated feelings towards Kosuke as he becomes closer to her older sister, Sakura, than to her.