A story about a breathtaking and thrilling office romance between Lee Eun Jung, who lives with a friend from her childhood, and Jung Jae Hoon, her old friend and team leader at Eun Jung's workplace.

Living together in a full-fledged in-house relationship. There is no right answer to the relationship, but how will the two couples solve the problems that arise during the relationship? Even more dizzy and breathtaking office romance begins.