is a Japanese manga series written and illustrated by Ai Minase. It began serialization in Shogakukan's Sho-Comi manga magazine in February 2020.
Nao Kosaka falls in love at first sight with a boy who helped her calm down during her high school entrance exams. After passing said exams, she later becomes classmates with the same boy who is named Keiji Haruna. Haruna is a young man who claims to hate girls who are attracted to him, but grows fond of teasing Nao.
Written and illustrated by Ai Minase, Seishun Heavy Rotation began serialization in Shogakukan's Sho-Comi manga magazine on February 5, 2020. The series went on hiatus on February 10, 2023, and resumed serialization on June 20, 2023. The series' chapters have been compiled into nineteen volumes as of March 2026.
The series was nominated for the 67th and 68th Shogakukan Manga Award in the category in 2022 and 2023, respectively.