OniAi (Onii-chan dakedo Ai sae Areba Kankei Nai yo ne!, lit. As Long as There's Love, It Doesn't Matter If He Is My Brother, Right?), is a Japanese light novel series written by Daisuke Suzuki, with illustrations by Gekka Urū. The series is published by Media Factory and since December 2010 and ended in January 25, 2019 with a total of 12 volumes released. There are two manga adaptation series, both serialized in Media Factory's Monthly Comic Alive magazine. An anime adaptation by Silver Link aired in Japan from October 5 to December 21, 2012.