"C'mon... please... make me your girlfriend!" To think an orphaned high schooler would find himself adopted by a family of seven women! Yusuke, who grew up in an orphanage, has been adopted many times before, only to be sent back time and time again with the foster parents saying, "He's too good for us!" Then one day, the Onagawas, all of whom are female, express interest in taking him in. Their single condition for adopting Yusuke is simple―No romance within the family. Yusuke accepts this, thinking there is no way he can develop romantic feelings for a family member, but contrary to his expectations, he is fiercely approached by all five daughters!

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