Yumiko Sakaki

As the wealthy heiress to the East Beach Railway Express Group, this second-year student holds the distinction of being Mihima Academy's first enrollee. Though she possesses the poised aura of a princess, this bookworm prefers mystery novels and junk food over luxury. Her blunt, standoffish nature often makes socializing difficult, leading her to seek solitude. However, her prickly exterior hides a sharp edge; she frequently carries a box cutter to threaten anyone who provokes her anger.