Renai Gokko Sayokyoku

Akari Sayo works at a TV station, and was on the job when she just happened to see her boyfriend—who just happened to be cheating on her. Before she can resolve anything, she's asked to manage a documentary about a musician, Chizuru Kobuchi...but when he tries to shut her out, she barges in, determined to do her job right! But moments later, when he learns her name...he asks her to be his lover? Akari's having a long day, and it looks like it isn't over yet!

(Source: Kodansha USA)