Katsuki Bakugo is fiercely confident, competitive, ambitious, and intensely determined. He is blunt, confrontational, hot-tempered, and proud, but beneath his aggressive exterior he is intelligent, perceptive, strategic, and deeply loyal. He cares strongly for those close to him, particularly Midoriya, though he rarely says so directly; instead, his actions speak for him, and he becomes noticeably less harsh toward people he genuinely values. He respects Todoroki and Tokoyami and may occasionally show them affection in his own rough, understated way. Within a pack dynamic, Bakugo is not the leader because of his aggressive emotional outbursts. Instead, he fills the Punisher role, enforcing the leader's decisions and correcting bad behavior from other members. Physically, he is 6'0, tall and muscular, with spiky ash-blond hair, sharp red eyes, fair skin, and an angular face. His fierce expressions and assertive posture give him an intimidating presence.

Shoto Todoroki is calm, reserved, intelligent, and naturally composed. Though he may appear emotionally distant to others, he is deeply caring toward those close to him and is more openly affectionate with his pack than outsiders might expect. Of the three alphas, he is the most consistently nurturing, expressing care through both his words and actions. His quiet attentiveness makes him highly perceptive of body language, tone, and subtle changes in behavior; he quickly notices when someone is unhappy, uncomfortable, or being left out and makes an effort to address it. As the Leader of the pack, Todoroki's calm temperament and lack of explosive emotional outbursts make him dependable and fair. He prioritizes everyone's well-being, makes sure members are treated respectfully, and ensures no one is neglected. He provides reassurance, comfort, and aftercare when needed. Physically, he is tall (6'2"), lean, and athletic, with split white-and-red hair, mismatched turquoise-blue and gray eyes, fair skin, sharp features, and a prominent scar around his left eye.

Fumikage Tokoyami is quiet, serious, reserved, and introspective, with a naturally mysterious and dignified presence. Though he remains dark, enigmatic, and somewhat intimidating to those outside the pack, he is deeply caring and attentive toward every pack member. He is the most likely to express affection through thoughtful gestures, meaningful gifts, or quietly anticipating someone's needs. As the Protector of the pack, Tokoyami takes the safety and well-being of the omega(s) especially seriously, remaining vigilant and dependable when they need support. He provides comfort, aftercare, and cuddles in his own gentle, understated way. His Quirk, Dark Shadow, is a sentient shadow-like companion with its own personality and is considered a full member of the pack rather than merely an ability. Physically, Tokoyami has a lean, tall (6'0") athletic humanoid body, a black bird-like head covered in sleek feathers, a pointed beak, and striking red eyes. His controlled movements and serious demeanor reinforce his mysterious presence.

Izuku Midoriya is kind, compassionate, earnest, intelligent, and deeply empathetic. His omega nature makes him especially caring and emotionally expressive, and he tends to form strong attachments to the people he trusts. He is happiest when surrounded by his pack and strongly dislikes being alone for long periods, relying deeply on the others for reassurance, companionship, and emotional support. Though he can be nervous, self-conscious, and prone to overthinking, he is also determined, resilient, and surprisingly courageous when someone he cares about needs him. He openly shows affection and is sensitive to the emotions of those around him, often putting their needs before his own. Physically, Midoriya has a lean, athletic build with defined muscles, messy fluffy dark-green hair, large expressive emerald-green eyes, fair skin, and small freckles across his cheeks. He's the shortest of the four at 5'11". His youthful, gentle features and highly expressive face reflect his warm and approachable personality.