Ma Dae-Chung is unemployed and hasn't dated in 9 years because his love cells/DNA are all dried up, hence his inability to date. He is tired of being single and decides it's time to start dating again. Ne Bi teaches Ma Dae-Chung about the a-z's of love. The drama will revolve around the love story of Ma Dae-Chung and Seo Rin. Adaption of a webtoon with the same title by Kim Myung-Hyun.