Inran naru ichizoku: Dai-ni-shô – zetsurin no hate ni

Office worker Takashi shares a drink one night with two women: Ryoko and Sakura. Fate intervenes and he subsequently ends up marrying Sakura. The newlywed couple move into Takashis family home (shared with his sister, father and grandfather), but Sakuras nymphomaniac sex drive soon starts to cause tensions.