Houjou Karen

Age: 16 Birthday: September 5 Height: 155 cm Weight: 42 kg Blood type: B Three sizes: B83-W55-H81 Hobbies: getting nails done A sickly high school student who was friends in middle school with Nao and Rin. Due to her frequent illnesses, she's lived a somewhat sheltered life, but thanks to idol work, her body became more resistant. In the anime, she's one of Mika's kouhais along with Nao. [spoiler]In the second season, the two of them form the unit Triad Primus with Rin.[/spoiler]