
Kim Min Gyu has wealth and success, but lives an isolated life due to his allergy of people. He then meets and falls in love with a girl who is pretending to be a robot for her ex-boyfriend, a genius robots professor.

Kim Min Gyu gets an allergic reaction when in contact with humans, but he says he isn't lonely.

Min Gyu orders Aji 3 for trial. But that night, the research team accidentally spills beer on it.

Ji A goes to Min Gyu's house. She makes her first mistake, but she must keep pretending she's a robot.

Min Gyu decides to keep Ji A. Meanwhile, Ji A discovers Min Gyu is the head of KM Financial.

Min Gyu believes Ji A is a robot and agrees to train her for a month, making Ji A face many obstacles.

Ji A discovers Min Gyu is her brother's boss. Meanwhile, Yoo Cheol hears about Santa Maria and Aji 3.

The cause of Min Gyu's allergy is told. Also, Ji A saves Min Gyu's life when he gets an allergic reaction.

Baek Gyeon wonders if it's okay for Ji A to stay with Min Gyu and realizes he still likes her.

Min Gyu becomes hopeful of curing his allergy. But Baek Gyeon is mad that Min Gyu and Ji A are getting closer.

Baek Gyeon punches Min Gyu, brings Ji A home, and tells her she doesn't need to see Min Gyu anymore.
Available on: MBC