This is a commissioned work by Hamatsu!
https://www.pixiv.net/member_illust.php?id=32020889
https://picarto.tv/Hamatsu

A scene featuring Selvaria Bles from Valkyria Chronicles, blindly struggling while searching for something that she could possibly use to get out of her restraints!

Could this be some sort of unusual military training exercise, or is she a prisoner of war?