The dream of any normal senior‑year student is to live under one roof with a beautiful, intelligent and attentive girl. For 17‑year‑old Sinyitiro Nakagami that"s exactly the case. After his parents and old family friends died, his childhood friend Hiromi Yuasa moved in—perfectly fitting the description. However, aside from obligatory greetings at breakfast and dinner, they hardly talk at home; all the blame falls on his mother, who keeps the "daughter‑in‑law" in a tight grip and protectively guards her beloved Sinyitiro. The father does not interfere with family matters, and the gentle‑natured Sinyitiro finds comfort in drawing children"s manga, learning local dances, or walking with his only friend Nobuse and his girlfriend Aiko. Everything changes when Sinyitiro meets the "queen of oddities" Noe Isurugi at school, a girl who loves feeding chicks and climbing trees. Soon after their meeting, Noe confesses that she needs help from someone very close to her. So is Sinyitiro"s fate decided? Yet Hiromi, who has gathered her spirit, has something to say about it, and it soon turns out that Aiko also has an opinion. Don"t you think we"ve seen something like this before? Nothing new under the moon…