Responses
The family isn't normal in the first place if the new dad is your daughter's age (but I guess rich people typically care about morality).
Yeah... it's a f*cked up family... The mother (without warning) introduced a young guy as her soon-to-be-husband and father of her daughter who's his age is just...
So I guess we got confirmation from both Rosa and YW and they don't want to end their little game... even after Suryeon and YW marries. They don't care even if they ruin the 'family' her mom is trying to build.