The drama revolves around the romance between a man named Oh Tae-ji (Kim Jin-woo), who works at a makeup store, and his first love Lee Ji-hee, who is also known as Latte (Park Min-ji), a new actress who is the subject of attention. They finally meet again when Latte has a fan-sign event at the makeup store where Tae-ji is working at. Later on, Tae-ji will be given a magic cellphone from a mysterious old lady that can be used to protect the person he loves, which is Latte, in the midst of a crisis and he's set on saving her.