Birthday: October 1st Blood Type: B Features: The heroine of the series and the other protagonist. In a chaotic school life where everyone around her is constantly acting like an idiot, she is the precious, sole voice of reason and the ultimate straight man. Her trademark is an orange knit sweater.

Birthday: July 28th (Based on the real-life birthday of Jel from Strawberry Prince) Blood Type: A Features: A high school boy with more than a few quirks. His values are completely skewed and he's constantly playing the fool, but he's fond of Tooi-san and forces her into his antics at every opportunity.

Birthday: February 11th Blood Type: O Features: A boy with a bandana and glasses, looking every bit the stereotypical nerd. However, he is actually a genius developer, serving as a "Doraemon-like" figure who invents various outrageous items, such as lenses that let you see affection levels as numerical values.

Features: An adorable, airheaded female student. She has a devoted side, being deeply in love with Otaku-kun. Along with Jel and Satan, she forms the "Bizarre Answer Trio."

Features: A transfer student with a severe case of eighth-grader syndrome (chuunibyou) and a total idiot. He hit it off with Jel immediately after transferring, and their perfectly synchronized, chaotic antics keep Tooi-san busy with constant retorts.

Features: A female student with high femininity and a gal-like appearance. While surrounded by idiots, she is actually quite smart and reliable, though she has a cute, airheaded little brother.