Adachi to Shimamura

Chapter 26
Vol.4 Chapter 25.5: Volume 4 Extras
Chapter 27.1
Vol.4 Chapter 25.5: Volume 4 Extras
Chapter 27.1
Adachi's looking for a quiet place to sit around while she's skipping class and goes to the second floor of the gym, expecting it to be empty. There she meets Shimamura, and their friendship begins.