Bitter taste suddenly appeared when you were abandoned by those you love Jessica jung is an Book Writer,She never get out from her room,never talk to someone else and never smile/laugh,her personality are cold,and gloomy person.She always hiding in her room but she has 1 secret ,everyday,she always stalk a Guy that live across her apartment.why Jessica doesn't want to communicate with someone else ? Who is the one that Jessica always stalk ? Lee Donghae is an Actor,He is active,confident,and childish,he love crafting things,eating chips,playing soccer and anything else.one day,he came to SEOUl for living with his brother and work in there .Aiden live in his brother apartement room,he love in there because its comfortable .but he feels someone watching him from across his brother apartement. Will he knew that Jessica is the one that stalk his.brother? When he meet and knew jessica,will he change her life and everything ?