In this world, there are many people who seem to be wandering along a relationship border-lining 'friends' and 'lovers'. This borderline is also commonly known as the FRIEND ZONE. It is a special area for those who are stuck in the middle where they cannot really stay friends with their close friends, nor move forward to be their friends' lovers.

The love story of Lin Qi Zheng (Song Seung-Heon), who is from a rich family, and Zhou Yu (Yifei Liu) who is a smart and beautiful lawyer.