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Hello, my name is Melodia Nonoire. I'm a magic soldier of the Royal Knights. Due to unexpected circumstances, I was transferred into a new unit, the Fenrir Knights. To my surprise, my boss, Captain Dietrich, is a dog!! And he definitely looks like the dog I used to keep, albeit Dietrich-sama is bigger and more fluffy, which suits my preference just fine but… Huh? What?!?! Just what's going to happen to me from here on?!?!
In the middle of fighting off a demon, Cynthia - a saint of the Arbosian Empire - has a curse placed on her that transforms her into a cat! And to make matters worse, Emperor Yzak - who considers her an enemy - picks her up and decides to keep her as his pet. If he finds out she's a saint, she be immediately executed! So will she be able to live a double life in this desperate situation?!