An anthology of stories by various authors:

1) Illusion Summers by Aki Arata
2) Summer Festival by Osora
3) Black Horror Memory by Satou Toshio
4) Stranded Days. by Ayane Shikihito
5) Kisaragi ☆ Summer Project by Komesuke
6) Start the Festival! by Ooshima Renmei
7) With a Clear Mind, Even Fires Will Cool by Sada Uoji
8) Your Voice and Soda Ice Cream by Itokichi
9) Flowing Noodles Warning by Toudzuki Youko
10) A Common Summer Story at the Beach by Tanaka Strike
11) Perfect Weather for Laundry by Peco
12) Konoha, Summer, and I (Physics) by Ryuuseee
13) Mekakushi Summer Vacation! by Wannyanpuu