Hong Nan Hee is an ordinary worker at a publishing firm. She’s a girl who always falls in and out of love ever since she was young. Nan Hee has a best friend in her former classmate & childhood friend, Byun Hyung Tae, who has always been there for her through her ups-and-downs and relationship breakups.
After a particularly bad breakup with her much-younger boyfriend, Nan Hee moves into Hyung Tae’s apartmentto escape from her mother’s nagging. There, she slowly discovers more sides to Hyung Tae than she thought she knew, and as the both of them spend more time with each other, different sorts of feelings begin to grow.