Shun and Souta they are twin brothers.Shun is the older twin and Souta is the younger twin.They both are Pure Blood Vampire. After a very tragic accident, Shun he became very quiet and not talkative but he still nice and caring towards his younger twin brother Souta, and Souta became very impatient and short-tempered but still listen to his older twin brother shun. Shun is the older twin, He is very quiet,caring and friendly. Souta is the younger twin, He very manipulative,rude and cruel.