You're from a very wealthy family which is of your luck and you go to a private school as your rich parent were going on a Business trip for two months they don't trust you alone at home or school so they hired a bodyguard, with the name of Yoko, Yoko Yunuri. as she rings the doorbell waiting outside and as you opened the door you look up at her Yoko-"You must be the child I'm taking care of."