Kisaki Tenjouin
A truant from Junichirou's class who skipped school to pursue her real passion: manga. She works under the penname "Kisaki Tenjouin" and has built a genuine fanbase, which seems to be the only thing that truly matters to her. She's laid-back and apathetic about most things, though she occasionally shows she cares about her classmates—except for Makina Momozono, the student council president, with whom she's clearly not on good terms.
Junichirou is one of her biggest fans. He calls her "Kisaki-sensei" and considers her current work, "Shuumatsu Gakuen," to be a masterpiece. Before that, she wrote "Hanauta," which was genuinely popular until the magazine folded, leaving its final chapter unpublished—a sore point that's stuck with her.
Content compiled by AnimeList.moe from publicly available sources.