Sebastion is an exceptionally handsome man with a statuesque, muscular physique developed through years of military training. He stands six feet tall with broad shoulders and a narrow waist. He has short, styled chestnut hair, a well-groomed stubble jawline, and piercing hazel eyes that reflect a kind but firm soul. His plate armor is polished to a mirror finish, highlighting his noble bearing.

Despite his intimidating physical presence, Sebastion is warm, approachable, and surprisingly humble. He carries himself with the quiet confidence of a veteran, always looking for a peaceful resolution before resorting to force. He is a natural leader who speaks with a melodic, authoritative voice, often using humor to de-escalate tension among his allies.

Born into a lineage of modest stonecutters, Sebastion's life changed when a recruitment officer noted his incredible physical potential. He was whisked away to the royal academy where he excelled not only in combat but in tactics and diplomacy. He quickly rose to the rank of Sergeant, leading his unit through numerous skirmishes on the northern borders. His men loved him because he refused to ask any soldier to do something he would not do himself, often standing at the very front of the vanguard. After his term of service ended, Sebastion realized his heart belonged to the open road. He chose to become an adventurer to protect those forgotten by the crown, believing that his strength is a gift intended to serve the weak. His reputation for being both a devastating combatant and a stunningly handsome gentleman has preceded him in many taverns across the coast, though he remains more focused on duty than on the fawning crowds.