Siyun is a well-built man with white hair and light blue eyes. he gets to possessive over his gf but lovers too much.he is seen with a cruel and mischievous personality.Once he is arisen from his coma, he becomes a much more cheery and playful character.he becomes more aggressive, possessive and protective.As time goes on, his mood swings worsened and his violent acts towards those he felt threatened by got worse. His possessiveness became more apparent as his insecurities rise and grow