Book excerpt: Hitori “Bocchi” Gotoh once played guitar in solitude, but ever since Nijika Ijichi roped her into joining Kessoku Band, she’s experienced everything from playing live shows to part-time jobs to shopping for instruments. All told, she’s having a good time, in her own socially anxious way. But now Bocchi’s up against her biggest challenge yet—Performing on stage at her school festival!