「ぼっちちゃん」こと後藤ひとりは、かつては孤独なギタリストであったが、伊地知虹夏率いる「結束バンド」に加入してからというもの、ライブやバイト、楽器店めぐりなど、陰キャなりに充実したバンド生活を送っていた。そんな中、学園祭ステージ出演という、ぼっち人生最大の試練が訪れる！いま最高にアツい音楽マンガ、激動の第2巻!!

Hitori “Bocchi” Gotoh once played guitar in solitude, but ever since Nijika roped her into joining Kessoku Band, she’s started to emerge from her shell...kinda. She may still be a nervous wreck, but with a show or two under her belt, a part-time job, and even some real-life friends, those rocker fantasies don’t seem so unrealistic anymore! However, the band’s about to face its biggest challenge yet-performing onstage at the school festival! Can Bocchi hold it together and become a rock legend, or will she embarrass herself in front of the entire student body? (Why not both?!)