Tenshi Ja Nai!! - I'm No Angel!!

Hikaru Takabayashi is looking forward to a quiet life at a private all-girls’ boarding school after an one-off appearance in a commercial led to endless bullying in grade school. However, her new roommate turns out to be famous idol Izumi Kido. Any possibility of peace and quiet disappears in a flash. To make things worse, after Hikaru discovers that Izumi is secretly a guy, she’s got to deal with Izumi’s agents lurking around every corner of the school, blackmail, abduction—you name it! And yet, for some strange reason, she can’t help but protect Izumi and his secret…