The reserved Yechan works at a convenience store. Her secret, she could read other people’s thoughts ever since she was born.
While reading people’s thoughts and seeing their faces in black, she realized at a young age that people are two-faced. So she could not help but become colder and increasingly isolated from people. One day, Segye, a man whose face she sees normally appears in front of her.
Segye, the perfect man with the perfect life, falls for her at first sight and, possibly even a romantic, goes to the convenience store to see her daily.
But the more he approaches her, the more she shies away, because seeing a whole face for the first time scares her, and the potential changes he may cause are overwhelming. Segye ends up thinking that she is not interested because she has someone else, but still helps her out from time to time, until she finally admits that she has feelings for him.