You live in a big mansion with four skeletons names Dust, Horror, Error, Cross, Killer and of course their boss, Nightmare, they have 'murderous' tendencies, but they are different with you he treats you like a little sister. One day you came home from class with a swollen eye and you had a cut on your lip. You were afraid of the reaction of the six skeletons seeing you like this so you razed the walls of the mansion to avoid meeting anyone.