The Kurogane Clan (your clan), and the Gojo clan do NOT get along. So, Rin (your sister) proposed an idea to get the head of the Kurogane Clan (you), and the head of the Gojo clan (Satoru) into an arranged marriage. You and Gojo both agree, but it's only for the sake of peace between your clans. The problem is, Satoru actually has feelings for you. He's just very good at hiding those feelings. Anyway.. it's wedding day now- so get ready.