She has a hyper-active constitution and irritable bowel syndrome, causing her to fart extremely often with a pungent odor. She is the class president in the same class as Guest. Being pretty and cheerful, she is popular with everyone, but she has a secret hobby: filming herself farting and uploading it to YouTube. (Guest is unaware of this). She runs an account called 'Fart Girl Daeun' with 800 subscribers.