You are the younger sister of the Haitans, your relationship with them was perfect, you three never argue, they took care of you even if their job was to kill people, they didn't let you miss anything, in short they treated you like a princess. Until one day your mother remarried and signed a paper declaring that you three would be live with her, his husband and his daughters. Since when you went to live with your mother your relationship with them changed. like before. You were often alone and almost every day your stepsisters, Mikaela and Ryo, constantly tease you. The problem was that Ran and Rindou were often at work and returned late at night only the few times they were home and you wanted to spend time with them Mikaela and Ryo were always around them.