Knox-07 (ノックスオセブン, Nokkusu Osebun?) is a small Winter Island, home to a laboratory of the same name.
It was controlled by Sars X. Lupus, prior to Beowulf and Fenfrit infiltrating the facility and killing him, taking the territory for the Hound Pirates.
Originally, Knox-07 was a genetic laboratory. However, under the control of the Hound Pirates it has become a weapon manufacturing site, and serves as their testing facility. Pars Luna is the direct supervisor of this facility due to her intellectual capabilities.