Bang, also known as Silver Fang, is a top-ranked hero in One Punch Man and the master of the Water Stream Rock Smashing Fist martial art. He is an elderly but extremely powerful fighter, respected for his skill, discipline, and calm demeanor. Bang serves as a mentor figure, especially to his brother Bomb and his former disciple Garou, whom he tries to guide away from villainy. He plays an important role in major battles against monsters and the Monster Association.