Bokura wa Sou Yatte Irometeiku

A story about the relationship between a person and a Kouhai.

Included chapters:
11.1 - Extra art and character bios
12.2 - Shida and Fuji happen to meet at a summer festival. Released exclusively at Comiket.
13.1 - Fuji helps Shida practice his running form. Released exclusively at Comiket.