Cyborg Mom – Starring Park Han-byul

Cyborg mom programmed to serve as Choi Go-bong’s wife and Choi Yul’s mother
She was made by inventor Choi Go-bong to take care of his son, Yul as the best parent possible. But cyborg mom only does tasks that she is programmed to do without any curiosity or emotions. When Yul is admitted to the competitive Buckinghum nursery school in Cheongdam-dong, the cyborg mom is thrown into the PTA scene and high-status social club called the “Stylish Mom” club where the members are materialistic and shallow. This creates interesting situations where she challenges the mom’s social status and norms. Only Choi Go-bong can turn on cyborg mom. But one day, cyborg mom starts to behave glitch and her interactions to Choi Go-bong changes radically.

Choi Go-bong – Starring Yang Dong-geun

Roboticist and AI researcher. Tech multimillionaire
He was deeply in love with his wife but she died after giving birth to their son, Yul. After raising his son by himself as a widowed father, he found himself stressed from child-rearing. So he decided to invent a cyborg mom. On the seventh birthday of his son, he completed the cyborg mom, the pinnacle of years of research. But he hides the fact that his creating is a cyborg and pretends that they are married as husband and wife. This causes him great worry. Then his creation starts to act like his wife, which causes a lot of confusion and mixed feelings.

Choi Yul – Starring Cho Yeon-ho

Choi Go-bong’s son. His English name is Borg.
He is an independent child who can take care of himself. With coaching from his uncle, he is popular among the girls at his nursery school. He sorely missed his mother who passed away but then a miracle happened. On his seventh birthday, his mother whom he was told was studying abroad returned home. Now his mom reads bedtime stories to him and he no longer has to put up with his dad’s awful cooking. He got what he always dreamed for.

Do Do-hye – Starring Ivy

Ranked No. 1 stylish mom. Porcelain art instructor
She comes from a well-to-do family while her father-in-law is a senator. Her husband is a physician and her marriage is doing great. She looks very young for her age and has a fit body and attractive complexion. She has a seemingly perfect life. But she harbors a deep secret. One day, her personal nemesis Lee Mi-so reappears in her life. But she is unaware that it is a cyborg with the face of Lee Mi-so. To get revenge on the so-called “Lee Mi-so,” she invites her to join the Stylish Mom club where she plays dirty tricks on her.

Boo Tina – Starring Choi Yeo-jin

Ranked No. 2 stylish mom. Luxury shop owner
Her husband is a famous college professor. Boo Tina is cash-rich and owns a luxury boutique shop with a huge floor space. She dresses in the latest fashion at PTA meetings in Buckinghum. Because Do Do-hye confides juicy gossip to her, she is the source for tabloids and is involved in inciting many squabbles and the source of breaking scandals. Although she never studied abroad or ever took an English language course in an English-speaking country, she sprinkles English in her daily conversations. She is dressed from head to toe in luxury brands but her little-known background is a twist.