After breaking up with her trashy ex-boyfriend, Jeong Eun-Gyo runs a cafe with her friend Kim Hae-Da and spends her days going smoothly. A person who causes ripples in her calm life appears.

“I like you, senior. I fell in love with you at first sight.”

Lee Jae-Heon, a young, handsome man who seems to have a twisted side. Eun-Gyo begins to feel attracted to Jae-heon, who approaches her without hesitation… But Eun-Gyo’s life, which was already shaken by this new relationship, gradually begins to experience greater turmoil.