Yuu and the others arrive at Mai's villa where the women have fun with Yuu on the beach, get him to lather them up, and cause an unexpected event in the shower room! Meanwhile, Mai also takes bold action to try and uncover Yuu's secret!
But I'm his little sister,
Aber als seine kleine Schwester
Pero soy su hermana,
Pero soy su hermana,
Moi, je suis sa sœur.
Ma io sono la sua sorellina,
Mas eu sou a irmã mais nova,
Я всё-таки его сестра,