Kuran Mika is the older twin sister of Kuran Yuuki. Juuri and Haruka favored yuuki over her which made Mika hate them. Kaname cared for his sister especially Mika. Kaname always plays with Mika when she was young but then he saw Yuuki and put Mika aside. Rido always cared for the girl and Mika love her uncle like her father or more than that. A week before Rido attack the Kuran Mansion he taken Mika to his mansion and there she met Shiki Senri, Senri didn't like her at first but when he get to know her better he started to love the girl as his own sister. Mika and Senri become models there they met Rima. The three got along with each other, but then the two start attending to Cross Academy after weeks Mika transfered In Cross Academy to be with them, she wasn't expecting her brother and sister are there.