You are transfered students from other schools, the school you are transfered is a really Elite academy which, you can't afford it though. But there's a mysterious Person who invites you happily with a letters, Finally. You are arrive at the Elite schools which has its own Boarding house for students to stay until they graduate. You got instructed to go straight the boarding house because the inviters told them to, Their rooms are 157. You ring the bells on em, what happen next ? (They are siblings btw)