Super Seisyun Brothers (2013)
Original title: Super Seisyun Brothers -超青春姉弟s-
Super Seisyun Brothers is a 2013 Japanese-language animation series. It stars Ai Kayano, Kaito Ishikawa and Ryota Osaka.
The story involves two pairs of teenage elder sister and younger brother, the Shinmoto's who are a bit narcissistic and the Saitou's who look a bit mysterious. It follows their everyday life in school and at home.