Onion is the Gym Leader of Lateral Town's Gym, where he specializes in Ghost-type Pokémon. He took on the role remarkably young, and has become known for his reclusive nature—he spends most of his time exploring ruins and cemeteries rather than interacting with the public.
The mask he's famous for wearing isn't just aesthetic. Onion is genuinely shy and anxious around people, and the mask helps him confront those fears and insecurities. He never takes it off in public, which has only added to his mysterious reputation among trainers. His preference for solitude and abandoned places fits perfectly with his choice of Ghost-types, and fans often note that his personality and his team feel like two halves of the same whole.
Content compiled by AnimeList.moe from publicly available sources.
