Kurasawa Shizuka met Masaki Tsutomu in a small clinic on a small island and they've grown from friends to lovers there. Their situation has changed, since Tsutomu is now a university student, however, their feelings for each other haven't changed. Secure in his position with Tsutomu, Shizuka suggests telling their families about their relationship. The first person who should know about it is Tsutomu's father, Shuuichirou. Shizuka goes to have a talk with him, but Shuuichirou makes him leave without listening to him. This doesn't discourage Shizuka. Along with Tsutomu, they're ready to do their best to get approval for their relationship from Shuuichirou. This is a love story of two people living on a small island and their tender days.