[Point Takashi] Oyako (Futari) to Boshi (Futari). Imouto ga Tou-san no Tsuma ni Natta node, Boku wa Kaa-san o Tsuma ni Shimasu...[Point Takashi] Oyako (Futari) to Boshi (Futari). Imouto ga Tou-san no Tsuma ni Natta node, Boku wa Kaa-san o Tsuma ni Shimasu...