Fenrir Kishitai no Tagui Marenaru Mofumofu Jijou: Idou Saki no Joushi ga Inu deshita

Melodia Nonoire, a magic soldier in the Royal Knights, never expected her transfer to the Fenrir Knights would land her with a canine commander. Captain Dietrich is unmistakably a huge dog—and eerily resembles the pet she once owned.