I don't know but I really feel mad with Ahjussi I mean.. Eui Joon asked him several time to tell him about his past or least something to know him better and he refused all the time saying that he will tell him that there were no need to Rush that when the time come he will tell him everything . Well the time came and he said nothing 'you don't need to know' I get that he has a terrible experiences but Eui Joon proved him that he is a nice person... I hope that he learn and pay the price for his selfishness