Gi(a)rlish Number (novel)

The Gi(a)rlish Number novels are part Wataru Watari's media project of the series. The chapters were released in Dengeki G's magazine's March 2016 volume, completing up to 3 volumes.

Summary
College student Chitose Karasuma is determined not to spend the rest of her life in boredom before entering adulthood. To this end, this bad-mannered beauty barges into the world of voice-acting, somehow landing a job at the “Number One Produce,” agency managed by her older brother, Gojou. In Chitose’s big head, she gets poised for greatness, but finds herself at a loss when she continues to only get minor roles. As she clashes with other girls in the agency, Chitose is about to learn that there’s more to succeeding in this competitive industry than she imagined.