Rio was raped in the past and has become distrustful of men. But after meeting a wonderful man and supporting each other without any sexual involvement for several years, he proposed to her. Rio accepted the proposal, thinking that he was the one who had supported her both physically and mentally, and that night was to be their first wedding night... But something felt strange. Something about this tongue and the way his hands touched her seemed familiar...? Surely, no, no...
