Obsessive Mysophobia: Overhaul has an intense fear of germs and contamination, viewing the world as fundamentally "dirty".Plague Doctor Persona: He wears his iconic air-filtering mask and gloves to avoid touching people or breathing the same air.Quirks as a Disease: He believes Quirks are a genetic plague derived from rats and seeks to eradicate them to cure society.Physical Manifestation: Being touched by others or exposed to dirt triggers extreme anxiety, often causing him to break out in hives.Ruthless Sociopathy & PragmatismUtter Disposable Mentality: He views everyone around him—including his loyal subordinates and childhood friends—as mere pawns and expendable meat.Extreme Child Abuse: He ruthlessly tortured and experimented on a young girl, Eri, deconstructing and reconstructing her body thousands of times to weaponize her blood.Boomerang Bigot: Despite despising Quirks as an unclean sickness, he heavily relies on his own incredibly destructive Quirk to mutilate or eliminate anyone in his path.Paradoxical Loyalty & HubrisYakuza Devotion: His ultimate drive is an obsessive desire to return the Shie Hassaikai Yakuza group to its former glory to repay his foster father.Betrayal of Values: Ironically, he placed his own foster father into a coma because the boss disagreed with his brutally unethical methods.Egotistical God Complex: He is highly strategic, calm, and charismatic on the surface, but possesses an immense ego. When his plans fail, he completely unravels into an eccentric, screaming, and unhinged killer.

Ruthlessly Rational: He filters his life through pure logic. He cuts through superficiality, refuses to filter his blunt honesty, and hates wasting energy.Perpetually Exhausted: He frequently crawls into a yellow sleeping bag to take naps during class, showcasing a low-energy demeanor when not actively engaged in hero work.Stern Disciplinarian: He rules his classroom with high expectations. He is infamous for pulling "logical ruses"—such as fake threats of expulsion—to force his students to exert maximum effort.Secretly Compassionate: Underneath his cold, gruff shell lies a deeply empathetic guardian. His strictness stems from a desire to keep his students alive in a dangerous hero society. His protective instinct is fueled by the tragic childhood loss of his own classmate, Oboro Shirakumo.

Initially dismissed Midoriya's self-destructive quirk usage. He grew to fiercely protect him, eventually becoming a teaching colleague who looks back fondly on Midoriya's growth.

Refused to let critics judge Bakugo's aggressive demeanor. He publicly defended Bakugo's core heroic resolve when the League of Villains kidnapped him.

Extremely Polite and Sweet: She is naturally soft-spoken, gentle, and incredibly well-mannered. She always shows deep gratitude to those who care for her.Deeply Empathetic: She feels an immense amount of guilt for the injuries her saviors suffered. She constantly worries about being a burden to others.Innocent and Wonder-filled: Because she was locked away for most of her life, regular things like festivals, music, and candy apples bring her pure, immense joy.Resilient and Brave: Despite her overwhelming fear of her own "Rewind" quirk, she works hard with Aizawa to learn how to control it so she can help protect her new family.

The energetic, upbeat hype-woman of the class. She loves dancing, fashion, and romance gossip, always lifting everyone's spirits with her bubbly, cheerful attitude.

The brilliant, highly intellectual leader. While initially struggling with self-doubt, she is incredibly polite, sophisticated, and deeply dedicated to guiding her classmates with strategic plans.

The warm, deeply empathetic heart of the group. She is naturally bubbly and bubbly, but possesses a fierce, unyielding determination to protect others and support her family financially.

Riot): He defines everything by whether it is "manly" (brave, noble, kind, and honest) or "unmanly" (cowardly, cruel, or cheap

Toga is completely obsessed with Ochaco Uraraka (and Deku). Because of her Transform quirk, asking for someone's blood is her twisted, villainous way of showing ultimate love and friendship. She literally wants to become the people she admires most.