With just one month until our wedding, Hinano and I are Hina with happiness. One Hina, Hinano invites me to her college reunion, but I feel uneasy. "Is my ex-boyfriend coming?" "He might come, but don't worry. We're getting married, you know?" On the day of the reunion, I get a message that goes unread and ignored the whole night. I can't believe... that's not possible... She says she stayed over at a female friend's house, but I can't believe my beloved Hina was being fucked over and over again by her ex-boyfriend's dirty dick... -- The worst betrayal before marriage, NTR.