Three neighbors face problems they want to avoid, but they grow facing their dilemmas. Anna lives with her mother and lives her life following her mother's wishes, but she has a secret she can't tell anyone. Yoo Ra and her family need to leave their neighborhood due to a reurbanization project in the area where they live. Seo Yeon is the vocalist of an indie band. She's very superstitious, and she can't get over her ex-boyfriend, who broke up with her a year ago.

One day, during a university festival where people are often known to find a partner, the 3 incredibly single members of the robot club decide to attend. There the sloppy and timid Hwi-so meets a very aggressive girl by the name of Hye-jin. His romantic advances, which he learned through reading books and watching YouTube, finally wake up to make their move. But will two finally become one this fall?