According to the official website, Suzuki, Daisuke
's light novel "Onii-chan dakedo Ai sae Areba Kankei nai yo ne
" was announced to get an anime adaptation.
OniAi anime official website
OniAi novel official website
A manga adaptation
of OniAi has been serialized in Comic Alive magazine since last October.
Onii-chan Dakedo Ai Sae Areba Kankeinai yo ne