Hong Nali (Soo Ae) is a flight attendant. At work, she is decisive and never drags her feet. She is very capable. Although she sometimes appears to be too strong and unkind, Hong Nali really loves her job and is willing to make every effort for it. Due to her enthusiasm and focus on work, the relationship between Hong Nali and her boyfriend broke down and ended in a breakup. Afterwards, Hong Nali's mother, who lived in her hometown, unfortunately passed away. In this way, Hong Nali returned to her hometown after a long absence. However, what she didn't expect was that waiting for her at home was a strange man named Gao Nuanji (Kim Young-kwang). All the evidence Gao Nuanji produced proved that he was Hong Nali's stepfather. In desperation, Hong Nali and Gao Nuanji began a strange "cohabitation life".