Ma Dae Choong 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 Choong about the a-z's of love. The drama will revolve around the love story of Ma Dae Choong and Seo Rin. ~~ Adapted from the webtoon by Kim Myung Hyun.