Kayo Maruta

The second student council vice-president, a shy 2nd-year student who is very close to Mitsuko, being her vice-president before Mitsuko left the school, as shown in volume 4’s extra chapters, which also revealed her surname. She’s the only one bold enough to talk to Mitsuko casually, even referring to her as “Micchan.” She was shown to constantly mock Mitsuko for being immature and scaring Harumi away. She appears to have a crush on Mitsuko.