Ep. 12: The girls attend a mountain rock festival with Sawako's tickets and agree to perform next year.

12

As summer vacation begins, the group abandons their planned training camp to attend a mountain rock festival, utilizing tickets provided by Sawako. They adhere to her rigorous survival guide before the event commences. While Mio becomes captivated by the music, Tsumugi and Yui experience disappointment due to unavailable food options. The friends subsequently split up to enjoy performances by different acts. Mio is drawn to a left-handed guitarist, whereas Sawako headbangs to a heavy metal band in isolation. Following a day of musical enjoyment, the group gathers under the night sky to listen to distant bands. They conclude their time together by making a mutual promise to perform at the subsequent summer festival.