A girl wakes up to find her room a mess. She realizes that she has partially lost her memory and all she can remember is that her name is Maze, and that she's now in a strange world. Here she meets a girl named Princess Mill who is on the run from the "Jaina Holy Group" whose minions Maze's house landed on. Maze also soon realizes that, at night, she transforms and cedes control to a male personality. [source]