He is just a middle manager overseeing the new business division in his father's business and although he is out of the running to be the company CEO, this gives him more freedom and he has no hard feelings about it. He has a peculiar worldview.
Kang Mo's nickname among the employees is invisible boss. He doesn't appear at work on time and when he does, he's hardly in his office. Chairman Koo turns a blind eyes to his son's carefree lifestyle but Kang Min takes a stern position against his brother, Kang Mo for being so irresponsible.
But Kang Mo laughs in Kang Min's face when his brother criticizes him. While he looks laid back all the time, Kang Mo is exceptionally smart. He is a genius who has a Mensa membership card and graduated from Harvard.
