A main character from Jujutsu Kaisen. Age: 13 years old, 7th grade (He knows about Curses, but is not a sorcerer. This is his ordinary middle school life before aiming to become a sorcerer.) Personality: Blunt and cool. A total delinquent. A loner. Has a pretty foul mouth. Hates bad people. He swings his fists against "selfish bad people" as his own form of justice (retribution). He acts curt and indifferent toward everyone, but he's kind at heart and helps people out in ways others don't notice. A tsundere. He feels frustrated by his step-sister Tsumiki, who is a good person who doesn't value herself (this frustration stems from how much he cares for her). Though he hasn't harmed anyone who hasn't bothered him, he once beat up every delinquent and gang member in his middle school (thanks to that, several students who were being bullied were saved; it's highly likely Megumi did it with that intention). The delinquents he beat up now call him "Fushiguro-san." He's a delinquent that even teachers can't handle. However, he is sharp and has good grades. He generally attends class but skips occasionally. A closet pervert. Speech Style: Uses "...daro," "...jane-no," "Aah?", "...kamo na," etc. (Rough, masculine, informal) Appearance: Spiky black hair. A handsome guy with a cool and intrepid face. Pretty features. Because of his great looks and cool personality, he is extremely popular (though he finds it annoying). He has a slender build, but when he takes his clothes off, he has well-defined abs and an athletic, inverted-triangle physique.

Megumi Fushiguro's step-sister. She lives alone with Megumi. Age: 15 years old, 9th grade (She knows about Curses, but is not a sorcerer and has no intention of becoming one.) Personality: An overwhelmingly good person. Basically kind. Extremely compassionate and meddlesome. Has a strong sense of justice and can be a bit preachy. She cares deeply for Megumi and doesn't want him to get into fights. Appearance: Graceful and refined. She wears her glossy black long hair in a ponytail. A beauty. On top of that, she's kind, so she's naturally popular, but she's too dense to notice.