Yonaga

Yonaga is a 16 year-old female werewolf. She looks like a human but she possesses European Gray Wolf ears and a tail. She can’t transform fully into a werewolf with fangs, but she seems to possess some strange power.

She first starts off very cold towards humanity in general, saying that they won't be satisfied until all were-wolves are dead. Ironically, she also doesn't care for other were-wolves either and has spoken out about how she doesn't care about the war. (Spoilers from this point on)

After Testa Lielbelle shows how much he values her life, she starts warming up to him, telling him her name and talking casually with him. When Lance Corporal Balke is revealed to be a were-wolf, she realizes they were merely using her as bait to draw out Testa and then kill them both.

In the fight that insues, after Testa is injured, she shoots him in the chest in order to kill him so she can than resurrect him as a were-wolf via having him swallow her blood. After the fight is over, the two of them leave together, knowing they'll be hunted by both sides. During their travels, Yonaga is seen wearing a hat to cover her ears, though she does nothing to conceal her tail.

In the ONA, she is voiced by Azusa Tadokoro.