Seiyu Radio no Uraomote

is a Japanese light novel series written by Ko Nigatsu, with illustrations by Saba Mizore. The series began publication on February 7, 2020 by ASCII Media Works under their Dengeki Bunko publishing imprint.

The series won the Grand Prize in the 26th Dengeki Novel Prize.

Synopsis
Yuuhi Yuugure and Yasumi Utatane, two high school voice actresses who just happened to attend the same school and coincidentally got placed into the same class, are the two hosts of a radio weekly program. As fellow classmates and voice actresses, they show all the listeners their great friendship! At least, on the surface. In reality, the quiet girl Chika and the gyaru Yumiko are complete opposites. And they absolutely cannot stand each other. Off air, chaos and insults erupt. On air, they're the best of friends. Just where will this tumultuous relationship lead them?