5-byoumae

Usagi, a newcomer to the TV production company, reunited with her first love, Hoshino, on a TV station. A senior in the high school art club, he was gloomy and unrefined, and transformed into an urban cool guy and lived a calculated and arrogant way of life. To find out the cause of such a change, Usagi decides to follow him around and becomes truly aware of her love for Hoshino. By chance, Yama-san, the producer who knew Usagi's feelings, decided to make the Usagi work under Hoshino!?

(Source: Kodansha, translated)