Miku, a younger sister who tends to be a recluse and has a brother complex. Worried about her future, her brother thinks about his sister's sake and suggests that she try to interact with other people through a dating app. Miku musters up the courage to meet a man, but unfortunately she is tricked by a scumbag. The brother, who has hurt his precious sister, vows to never let Miku go, and the two comfort each other as if to confirm their bond.
