Tsujibayashi Shouko

Affiliation: Ichisakura School second year, Class President
Shouko is one of the protagonist's classmates, as well as the president of their class after the protagonist suggested it as a joke (she nominated the protagonist to be Vice President).
With her great communication skills and confidence in public speaking, she runs the class efficiently and effectively.
As such she is often butting heads with Riko, who is the complete opposite of her, and yet is the student council president.
Shouko also heavily romanticizes gay relationships, as seen when she imagines Tsubasa (who she believes is a boy) and the protagonist in explicit situations.
Shouko also has some kind of immunity to the Ero Appli.