Yasumi is enjoying her school life! But there’s no Yuuhi by her side――. "...If this continues, it will be very bad." Although the second live of "Tiara☆Stars" was a great success, she has been on a losing streak in auditions. Faced with her results from a mock exam, her homeroom teacher confronts Yumiko, who is pouring herself into work out of anxiety. If things stay this way, both her entrance exams and voice acting career will collapse!? Encouraged by Kagazaki, Yumiko decides to focus on her student life. Study sessions with friends and preparations for the cultural festival――her long-awaited "youth" is so much fun. "This is the first time I've had a period where I don't think about acting at all." The honest high school girl, Satou Yumiko, and the anxious voice actress, Utadane Yasumi. What she sees while struggling is Chika, who is thriving in both anime and radio――. A story of a youth voice actress, filled with doubts about her future and her relationship with Chika, now in its 9th installment!