After his mother's death, he wants to reconcile with his father, Park Soo-chang. Song Min Hyung as Choi In Ho, the medical superintendent and director of Joo-nam University Hospitalįormer resident of Sky Castle, committed suicide after her son runs away to his secret girlfriend.She is the one who pushed Seo-jin to bring Ye-seo to the top in order to have a third generation doctor in the family. Lee Hyun Jin as Teacher Jo Tae Joon, Joo Young's secretary.She and Woo-joo have mutual romantic relationship. She tries to get under Ye-seo's skin, knowing Hwang Woo-joo likes her and not Ye-Seo. He is not interested in studying, but still try his best under huge academic pressure. She claimed that she attends Harvard but her lies were exposed by Seung-hye's sister. He strongly dislikes his father's method of teaching and studying. Seung-hye's younger son and the second twin. Even though he is calmer than his younger twin, he strongly dislikes his father's method of teaching and studying. Seung-hye's elder son and the first twin. Basically one of the kinder student in the school since he always help other students who have difficulties. She, however, gets along well with the other children in the complex and is the first one in the family to warm up to Hye-na. She is cynical and often clashes with her sister and believes her parents only care for her sister.
She is very impulsive and is as determined as father in achieving her goals. Her dream is to enter Seoul National University's medical faculty and be a third generation generation doctor. He is very obedient to Kang Joon-sang but behind him, he admires Hwang Chi-young. Jin-hee's husband and a professor of orthopedics. He always forces his kids harshly to study and getting on top of the class. A law school lecturer and former prosecutor. He grew at an orphanage which is owned by Soo-im's parents. Doctor of the Joo-nam University Hospital. Soo-im's husband and a professor of neurosurgery. He will stop at nothing in order to get rivals out of the way. He is very ambitious and is obsessed with maintaining a good track record to elevate his status in the hospital. He holds Min-hyuk in absolute contempt and delights in the latter's misfortunes. Seo-jin's husband and a professor of orthopedics. She hides a past and secret life that she tries to escape from. Because of her high success rate in getting students accepted, Seo-jin was determined to hire her as her daughter's tutor. She is a well-known tutor only accessible to the elite and only caters to two students at a time. Her loyalty changes easily as well depending on who she is with. But she finds it difficult to keep secrets.
She bribes Seo-jin with gifts into trusting her with information. When Woo-joo got arrested, she offered the services of a lawyer.Ī friend of Seo-jin who tries to get her child to do everything with Seo-jin's daughter so he can be successful. She changes her ways and becomes protective of her sons from their father's harsh teaching methods. She is the most down to earth out of all mothers in the complex and the only mother who is a step-mother.Ī woman who befriends Soo-im, and starts to look down on how the other moms treat everyone and their kids. She knows who Seo-jin really is, as she knew her from when they were younger. She is disliked by the other parents for disrupting the status quo. She went as far as to create a back story and hire people to pretend as her parents.Ī new member of the neighborhood who disapproves of the other parents' methods for getting their kids to university, believing it is too harsh. She hides her past from everyone except her husband and in-laws who knew that she grew up poor with an alcoholic father who sold oxblood and offal.