Jessica is a cupid who really came from heaven to help people get their soul mates. She was one of the prettiest, friendliest, and powerful cupid in heaven. She is also disguising herself as a high school student on secretly helping people get the ones who they truly love. Her friend, Oh Chae Min, is a friendly unnie who is in love with a cute and funny guy, Lee Donghae. As a friend, Jessica is eager to help her but, when she became close with him, she starts to fall in love. The cupids are not allowed to fall in love with humans nor them falling in love with cupids. Will Jessica decline Chae Min's hope and get Donghae as she broke a rule from heaven or help Chae Min and give up her once in a lifetime love?

A wise and cute cupid who's promoted to be a cupid in earth. She is a normal sophomore in Kwangju High School who is a friend of the most popular girl in school. She has a kind heart that a smile wil never fade away.

A funny and talented nerd who always make people laugh. When he takes of his glasses, girls swoon at his cute smiling face. He also thinks that he likes Chae Min and she is his type but it all changes when he meets her helpful friend who is the same year as him.

She is the Chairman's daughter and considering herself filthy rich. She is a model who is quite friendlier and understanding than all other models. Perfect body, perfect life, a queenka whom everyone respects which everything evolves around her. But there's one thing she wants other than fame and fortune. Someone who will complete her whole life. She is inlove with this funny nerd dongsaeng who always passes by her. With or without glasses, it's her one-sided love to the talented Lee Donghae. And she has someone who will help her get her man of her dreams.

This kingka is an arrogant bully who is the son of the owner of the school. His target of all is Lee Donghae for girls always swoon over him even for his nerd looks. When he fights donghae, he takes it all and let it go. He is allergic to shrimp that began his arrogant self changed when he met this kind transferee in his school. He is the same year as the queenka and her childhood friend but they seem to dislike each other.