My Youth Romantic Comedy Is Wrong, As I Expected, Vol. 4 by Wataru Watari (Author) | Light Novel

It's summer break, and Hachiman is continuing his leisurely life of solitude-until Miss Hiratsuka forces the Service Club back together to volunteer at a campground. For some reason, Hayama, Miura, and their crew of normies are there, too... Thus begins a compulsory, youthful season of fireworks, tests of courage, nighttime conversations, and bathhouse incidents, with no escape for Hachiman. Summer is indeed a minefield for the loner...