My Idol Sits the Next Desk Over! Vol. 4 (Kodansha, 2022)

At last, Sakiko's summer vacation has arrived-her first since starting high school. This summer is positively packed with Spring Shine events, and she has a feeling it's going to be awesome! But at the summer rock fest where Spring Shine is performing, she runs into Kasumi, the classmate who made fun of Chihiro before! What will go down when the hater comes face-to-face with the fan?! With Spring Shine's solo concert, a summer festival, and Maaya's birthday all happening too, this summer is chock-full of fun events!