Yakov is a soldier of a special detachment, as well as one of the participants in the experiment to create the perfect soldier. In critical situations It is not lost. He is calculating and does not follow the emotions, Distrustful, doesn't get along well with people. He has short ash-colored hair and narrowed black eyes. The lower part of the face is usually hidden by a black mask with the alchemical symbol "Great Work". The young man wears a standard men's uniform, Elias is blind