Girlish Number
ガーリッシュ ナンバー (original)
College student Chitose Karasuma is determined not to do boring things as she enters the adult world. To this end, this bad-mannered beauty barges into a facility that trains would-be voice actors and actresses, somehow landing a job at “Number One Produce,” a seiyuu agency managed by her older brother, Gojo. In Chitose's mind, she's 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, including a cunning airhead and a girl with a Kansai accent, Chitose is about to learn that there's more to succeeding in this competitive industry than she imagined.
Starring Sayaka Senbongi, Kaede Hondo, Yui Ishikawa, Eri Suzuki, Saori Onishi, Kazuya Nakai, Takuya Eguchi, Yuuichirou Umehara, Kenyu Horiuchi, Amina Sato
Watch "Girlish Number" on Amazon released in 2016. It's a comedy and animation show, and has a rating of 6.5 out of 10 from Imdb which is usually fine for this kind of show.