There are tally marks notched on Michishige's thighs-a secret only Yuya knows! Due to the doodles on her legs, rumors spread that she was very experienced. People joked with Yuya, saying, "Get Michishige to help you become a real man!" As if he could ever do something like that... After things start to progress with Michishige, Yuya finally confesses his feelings. She responds, "If we're going to date, it has to be with the intention of getting married, right?" The tally marks on her thighs are actually her vows of love! With a quirky girl full of overwhelming affection, their romantic comedy begins!
"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!
"I'm going to be in a relationship with my step-sister!" Wait, who decided that?! There was no way he was going to fall in love. Since that traumatic event from 2 years ago, he avoids love like the plague--When his dad gets remarried! Now he has 2 sisters?! This must be some joke!! Even though Aoba wants nothing to do with the sisters, they always find themselves in sticky situations. Can they open his "door" to love? The beginning of a juicy story bound to make life a home a very ending love battle!"