Yuuka

The first Dragon I met upon arriving in this world. I figured I might as well explore a bit, and as I drew near a large tree with beautiful flowers, this Dragon leapt at me, attempting to scare me off, it seems. I was able to counter its violent onslaught when I realized it was just trying to protect the tree. From there I conveyed my willingness to help it protect the tree, and my message appeared to get through to it. From then on, we were friends.

According to my research, this kind of Dragon is called a Mirror Dragon, and they are generally quick to fight and aggressive. However, the behavior of this one seems centric around protecting nature. From there, I decided to give it a Human name, and since reminded me of a friend of mine I knew what to call her for now...

Yuuka.

Update: I suppose that my calling her Yuuka wasn't too far off. She's friendly enough, but she seems to have a penchant for threatening people who mouth off to her physically. However, I can tell that with her it's done in a relatively playful manner-She never permanently injures her comrades, and Yami has even recovered from any nasty injuries she inflicts on him during training.