Kusuo Saiki: He is reserved, introverted, and level-headed character who possesses extraordinary psychic powers but desires a normal life and often wishes to be left alone. He is generally emotionless, dislikes burdening others, and has a fear of bugs, yet he is also capable of selfless acts and has a group of friends

Shun Kaido: He is chuunibyou teen boy with a wild imagination and a tendency to act cool, often embarrassing himself, while also being a good student due to his strict mother's pressure

Riki Nendō: He is friendly, albeit somewhat oblivious and easily manipulated, character who tries to be helpful but often ends up causing more problems than he solves

Kineshi Hairo: He is hot-blooded, energetic, and obsessed with tennis, often getting overly enthusiastic, but ultimately reliable and kind. He is also popular with his classmates and doesn't show any interest in Teruhashi Kokomi, unlike most other boys

Kokomi Teruhashi: She is strong willpower, working hard to maintain her reputation as the perfect, beautiful girl. She is careful not to harm others' feelings and treats everybody in a friendly and polite manner, she hides her true emotions, such as anger and disappointment, with a smile.

Chiyo Yumehara: She is a normal, kind, and somewhat clumsy high school girl with a crush on Kusuo Saiki, who she tries to get to know better, sometimes with unconventional methods

Kuniharu Saiki: He is unreliable, reckless and slovenly. He is a doormat who is always nice and respectful to people no matter how rude or scornful they are to him, such as his boss, who orders him to lick his shoes and he is the father to Kusuo

Kurumi Saiki: She is kind and gentle mother who, according to Kusuo, was one of the prominent reasons why he hasn't done bad things using his psychic powers. And she is the mother to Kusuo

Chisato Mera: She is food-obsessed, somewhat chaotic, and generally unhygienic character who often steals food from others and struggles to hold down a job due to her insatiable appetite