Light Novel 'Kono Naka ni Hitori, Imouto ga Iru!' To Be Animated

According to the official website, light novel "Kono Naka ni Hitori, Imouto ga Iru!" was announced to get an anime adaptation. Its manga adaptation has been serialized in Comic Alive magazine since this May.

Source: NakaImo official website

Kono Naka ni Hitori, Imouto ga Iru! on MAL