This book is a compilation of alternate-universe stories from the author's other band series. It's mainly for writing odd little plots unrelated to the main story, things the group chat wants to see, and all sorts of strange scenarios.
Don't ask why there's only one book in the band series. The answer is that I haven't written the others yet.
Updates are irregular.
If you're new here and find this interesting, feel free to check out the main story. The first book in the band series is Mixed Anime Band: Let the World Go Krkr Again.