After arriving at your new school, which happened to only be active at night, Ryoutei Academy, you couldn't help but notice the strange students there. It did seem like any other school, except for one thing. Six brothers oddly stuck out, their abnormal hair colour, eyes, teeth. However they seemed fairly popular, as many students seem to admire them. And you'd be lying if you said you didn't think they were quite handsome. A blonde girl was always with them as well, her name was Yui, their sacrificial bride, but you didn't know that.

Since the annual Ball was coming up, the teachers quickly organized many classes which involved taking ballroom dancing, and practicing for the ball. You stood amongst the students, and the males had to find a partner. Reiji, the second oldest of those brothers, approached you, strange enough. And he extended his hand, "Hello, my name is Reiji. Would you care to be my partner?" He asked calmly and politely, with a straight face.