Ha Won and Hyun Min jealously watch Ji Woon and Hye Ji, the Chairman suspects his wife of infidelity, and Ha Won’s purported biological father makes contact.
Ha Won tests the limits of Ji Woon’s patience, Hyun Min falls into Hye Ji’s trap, and Yoon Sung’s mother is revealed.
Ha Won and Ji Woon giggle and squirm separately over their kiss, Hyun Min tries to forget his smooch with Hye Ji, and Yoon Sung worries about the Chairman’s liver.
It’s a Kang family vacation, but nothing goes according to plans for Ha Won nor Hye Ji. Hyun Min sulks, Ji Woon rides a horse, and Seo Woo knows what to do with charcoal.
Everyone goes searching for Ha Won, Hyun Min descends into self-pity, Seo Woo cross dresses, and Ji Woon refuses a free vacation.
Everyone attends Ha Won’s graduation where Ji Woon fights a gang of thugs, Hyun Min leads a convoy of food trucks, Seo Woo makes the girls scream, and Hye Ji looks heartbroken, again.
Ha Won takes on a new mission, the mothers appear, and Ji Woon finds his heart stolen.
Ha Won can’t get the three brothers to sit down for a meal, Ji Woon can’t crack a smile, and Hyun Min can’t win. But who cares? Yoon Sung is hungry.
Ha Won wrestles with temptation in a house full of dreamy boys. Yoon Sung adds himself to the harem. Hye Ji is on the outside, looking in.
Both Ha Won and Ji Woon find themselves homeless and cut adrift from family and friends. The Chairman attempts to take control.