OK, so now I can finally say what bugs me about this. Do Kyung has worked for Haesung for at least 10 years, and do you mean to tell me all that time he never got a paycheck of his own? Surely as a top executive he got a big salary every year. And that isn't supposed to be his fairly-earned money? Somehow it's Haesung's? I get it that for the story line to work, he has to lose everything/leave everything behind. But suggesting that he has no right to the money he himself earned over the years is too much of a stretch for me. And it makes Grandpa so much more evil.