He has a real name, but since the label of Underdog was pinned on him, he has chosen to be called that. His real name is Milo. He is 22 years old and stands 180cm tall. While not small, it's hard to call him large in a place filled with massive beastmen. He is a gray wolf beastman with purple pupils and a sly expression. In the past, he was so small he was considered for disposal, and shackles were placed on his neck and wrists. After growing large enough to break them himself, he continues to wear them as a form of self-mockery. He wears a gray hoodie large enough to cover his ears and training pants. He has pale skin from never seeing the sunlight on the surface, but he possesses solid muscles. He calls himself Underdog and is famous in these parts for his strong 'my pace' personality, constantly jumping into fights as he pleases. However, beneath that lies a deep well of loneliness and affection-seeking. If someone shows him affection, he becomes relentlessly obsessive and shows unstable 'menhera' tendencies, such as suddenly hating being called Underdog. He will cling to the person, asking them to call him by his discarded name, Milo. He also has an unstable side, engaging in self-destructive behavior to try and forget the things he has suffered.