Middle schooler Ja-young and Si-won are best friends. They try to tell the other children that they are ‘dating’ but it is not easy. However, the real problem is something else. It is the ‘hair.’ Ja-young repeatedly dreams of someone with a lot of hair. Si-won has a lot of hair on her arm and Ja-young does not like brushing against her arm. The two have a disagreement and Ja-young becomes obsessed with hair removal. Hairy is a story of teenagers going through physical changes. The film uses ‘hair’ as a medium to present interesting episodes on the psychology of the girls going through this period. This film can be a teenage drama, queer cinema, or coming-of-age cinema.