A warm, friendly, considerate person, Hee Jae is surrounded by people who claim to know and love her. The problem for Hee Jae is that she isn’t really sure if she really understands herself. On the other hand, Mi Na is Hee Jae's confident and energetic best friend and colleague at Play Books, a supplier of books and related products centered around sex and romance. While an expert in how to achieve physical pleasure, her understanding falls short on romantic relationships. When they find themselves told to take over hosting a sex and romance advice podcast, the two feel more than a little lost...

Life in the countryside is quiet and mundane for bookish Yi-gyeong until an errant ball sends star athlete Su-yi crashing into her life. The connection between the two girls is instantaneous, and simmers until their mutual attraction bubbles up into love.