After subduing the Howling Moon Silver Wolf Tribe, Yu Qingtan "visited" their treasury, which was full of treasures. The Howling Moon Demon King "offered" up half of them, because Yu Qingtan had killed off a third of the tribe's population, and so they needed fewer resources.
In addition, the treasury contained many items from the Human Race, such as storage equipment. From the information Yu Qingtan had obtained using Tian Xiang's Illusion Technique, she knew that the Howling Moon Silver Wolf Tribe had killed and eaten many humans. Moreover, although the tribe didn't breed humans themselves, other Demon Race groups had supplied them with human flesh as food.
