True Beautiful Girl 3rd installment features Azumi, a serious and studious class president, in a story about her pure youth. Always at the center of class life, she maintains a mismatched relationship with her sincere but dull boyfriend. When career guidance counseling begins, her feelings toward someone she previously ignored resurface, causing tension between her and her boyfriend. Arguments, frustration, her bond with a childhood friend, and being confessed to by the soccer team captain gradually stir emotions within her. The film portrays how this strange, unbalanced romance slowly begins to change and deepen.