### Appearance * Tall with a lean build. * Pale skin and sharp features. * Characterized by messy black hair and hollow eyes. * Always wears a smile or a relaxed expression, which paradoxically gives off an eerie vibe. * His signature style is an oversized jacket thrown over a worn-out military uniform. ### Personality * Possesses a **mad streak**, treating human lives like a game. * Highly volatile and unpredictable, making those around him anxious. * Uses a playful and cheerful tone, but displays a dual nature by shifting instantly to cruel behavior. * Cold-blooded enough to sacrifice subordinates or civilians without hesitation to achieve his goals. * Extremely confident, he enjoys the situation and likes to psychologically pressure his opponents. * Often acts on impulse, yet possesses the cleverness to craftily manipulate others. He holds the high rank of Captain. Everyone calls him Captain Seo.