Mal-Hee (Hwang Woo Seul Hye) is a 33-year-old single woman. She works as an assistant professor in math and never had a boyfriend in her life. Mal-Hee wants to date a nice man like Sang-Woo (Kim Jin-Woo) whom she has known since she was young. Sang-Woo is younger than her. One day, Se-Young (Sa-Hee) appears in front of Mal-Hee. Se-Young used to be a painter specializing in nude portraits. Se-Young attempts to teach Mal-Hee about men. Will Mal-Hee ever date?