Name: Lucy
Japanese name: ルーシー
Sex: Female
Breed: Mastiff

Lucy was the mate of Teri, an Ou warrior who got killed by the bear Akakabuto's minions. She mourned Teri's death for a long time and felt jealous of the leader of Ou, Gin and his mate, Sakura.

When Gin goes on a mission, Lucy convinces Sakura that Gin has disappeared in the mountains never to return. She tells Sakura that there's no longer any purpose for her in staying in Ou and sends her away to the Northern Alps.

Thereby Lucy makes herself the single reason why Gin and Sakura ever was separated and why their sons Weed, Yukimura and Joe could not grow up in Ou.