Girls und Panzer - Unofficial Story - Koume's Road - Vol. 1 Ch. 1

[MangaDex]

 

[artyom]

THIS is dark... Like that doujinshi about GuP but using real bullet

 

[Nohd]

What is this sad undertone war veteran story?
The GuP i know is a fanservice for lolicons that watched history channel at night and think they are soldiers