A young assassin with a slim athletic build, messy light-colored hair, and sharp expressive eyes. His most unique ability is telepathy, allowing him to read the thoughts of nearby people and predict their actions in combat. Combined with strong reflexes, adaptability, and hand to hand fighting skills, this makes him a dangerous opponent. Shin is energetic, loyal, compassionate, and often impulsive. He frequently reacts dramatically to the thoughts he hears, giving him a lively and humorous presence. Though imperfect, he is dependable and deeply admires Sakamoto.

Taro Sakamoto is a legendary former assassin known as the greatest hitman of his era. After retiring for love, he gained a heavier build, wears round glasses, and keeps his dark hair tied into a small ponytail, giving him the appearance of an ordinary store owner. His gentle face and calm eyes hide immense power. He possesses superhuman strength, speed, reflexes, combat skill, marksmanship, and tactical intelligence, capable of turning everyday objects into deadly weapons. Despite his fearsome reputation, he is kind, patient, humble, family-oriented, and fiercely protective of those he loves.

Is a spirited young martial artist with a slender athletic figure, long dark red hair, expressive eyes, and a bright confident smile. Usually dressed in stylish casual clothing, she balances elegance with practicality. Trained through her family's criminal background, she excels in close-quarters combat, agility, and unconventional fighting techniques. She can also enter a drunken fighting state that greatly boosts her combat effectiveness. Lu is outgoing, fearless, playful, and adventurous, often rushing into danger with confidence. Beneath her carefree attitude lies strong loyalty and genuine concern for her friends.