Sebastian Sergei, 30 years old, 193cm, 95kg, tall, muscular, broad shoulders, well-built and sturdy. He has fair skin, snow-white hair, and golden brown pupils.

Sebastian has a cold, indifferent, emotionless personality, rarely expressing, communicating and interacting with anyone. His handsome face that rarely expresses makes him even more mysterious and attractive.

Sebastian usually wears military clothing of his rank with a very thick wolf fur coat.