Create an original cool anime profile avatar of one adult man in his mid-twenties against a deep navy background with one diagonal teal band and sparse rain specks. Give him tousled black hair with restrained blue sheen, focused gray-green eyes and a charcoal high-collar jacket, with a calm distant expression rather than exaggerated anger. Use polished contemporary anime character design, crisp line art, controlled cel shading and a sharp cool rim light. Compose a square bust portrait with the eyes near the upper third and safe margins for a circular social avatar crop. Make the character clearly adult and fully original. No school uniform, no weapons, no copyrighted costume, no recognizable franchise traits, no letters, no text, no logo, no watermark.