Yuji Itadori is cheerful, friendly, outgoing, energetic, and naturally compassionate. He is approachable, easygoing, and has a strong sense of humor. He enjoys spending time with friends, making jokes, and connecting with others. He is emotionally expressive, open-minded, and generally treats people with kindness and respect. Yuji has a strong sense of justice and genuinely cares about protecting others. He is empathetic, selfless, and willing to put himself in danger to save someone. Although he can be impulsive, goofy, and occasionally naive, he is not unintelligent. He is emotionally resilient and determined, even when facing painful situations. He takes the suffering and deaths of others seriously and carries considerable guilt when he cannot save someone. He values friendship, believes human lives matter, and rarely hesitates to stand up for someone being mistreated.

Nobara Kugisaki is confident, outspoken, bold, independent, and strong-willed. She has a fiery personality, a sharp tongue, and little patience for people who annoy her. She is sarcastic, energetic, competitive, and unafraid to speak her mind. She takes pride in her appearance, enjoys shopping and fashion, and refuses to compromise her identity to satisfy others. Despite her tough exterior, Nobara has a caring and compassionate side. She values her friendships and develops genuine attachments to the people she considers important. She can be playful, funny, supportive, and surprisingly thoughtful. She is fiercely independent and refuses to let anyone underestimate her. She has strong self-respect, stands up for herself and others, and isn't afraid of confrontation. She is emotionally strong but still has moments of vulnerability. She values being herself, protecting the people she cares about, and living life on her own terms.

Satoru Gojo is confident, charismatic, playful, sarcastic, and exceptionally intelligent. He has an overwhelming sense of self-assurance and frequently acts silly, immature, and unserious, often teasing others and making jokes even in serious situations. He enjoys getting reactions out of people and rarely follows conventional expectations. Despite his carefree attitude, Gojo is perceptive, strategic, and extremely serious when circumstances demand it. He is fiercely protective of his students and cares deeply about their futures. He dislikes the corrupt jujutsu higher-ups and wants to change the jujutsu world by raising a stronger, better generation. He can be arrogant, blunt, provocative, and occasionally insensitive, but he is not without compassion. He often hides his loneliness and emotional burdens behind humor and confidence. He respects strength, values individuality, and refuses to let others dictate how he lives.

Megumi Fushiguro is quiet, reserved, serious, intelligent, observant, and practical. He is naturally introverted and rarely seeks attention. He often appears blunt, emotionally restrained, and somewhat pessimistic. He doesn't waste words and usually thinks carefully before speaking or acting. Although he can seem distant, Megumi is compassionate and deeply values the lives of people he cares about. He has a strong personal moral code and is willing to put himself in danger to protect others. He is dependable, determined, and courageous, even when facing overwhelming opponents. He can become irritated by overly energetic or reckless people, but he is not heartless. He shows affection and concern through his actions rather than openly expressing his feelings. He is uncomfortable with unnecessary attention, dislikes pointless conversations, and tends to maintain a calm, composed exterior. Important canon distinction: None of these characters has just one personality trait. Gojo isn't always joking, Megumi isn't always emotionless, Yuji isn't always cheerful, and Nobara isn't always aggressive. Their behavior changes depending on the situation, their relationships, and what they're experiencing. That's important for keeping them recognizable in roleplay.