Kira Yuki-15-year-old guy, whose only desire is to be a normal teenager. Whatever he wanted, he is not really a man, he Legera Saramanda. On his palm there is a strange symbol, indicating that he is yours. Inaba and Yukia-two closest friend of Cyra. However, since this is a special kind of his kind, others love Kiru for the strength she can bring. The mysterious secret society Rosen Kroitsa seems to know a lot about Saramand, holding them as pets and spreading them. One day, Kira was captured by her pursuers, and Inaba and Yukia pursue the car in which she was stuck. The accident that should be changing everything for friends as the appearance of the older brother of Kira ...