Ji Kang has just arrived at his grandfather's mansion, but he has been treated to an argument between brothers and sisters who look so hateful and angry with each other.
As the most mature man in the Min family, Ji Kang can't do anything at all, he chooses to remain silent, looks at him with a serious look, and digests what Tae Hyun is trying to say to his older brother and Tae Jung is trying to advise his younger brother.
It would be foolish for Ji Kang to meddle constantly just to fix their families and households with each other for their common good.