Where was this information?
Like I know his parents died and all that but how do we know it's his aunt and cousin?
she kinda has to be since she has the same last name as the family and if his parent died he would have gone to the nearest relatives and they would get custody so she being his aunt is a likely thing.... in most story its always the aunt/uncle who takes in the child for their parents insurance money and it mention the aunt and son were big spender wasting their money aka his money..
THat why when the last name of his family was mention the boss was like Choi? since it was the same as his biological parents who died so she must have been related to the dad or mother
So his parents died in an accident. so the aunt pretended to be his mom and took the insurance money and bullied him.... and his "brother" is actually a cousin that's why he was always beating and taking his money.... what a deadbeat mother and son combo