is a Kekkei Genkai that allows the user to call upon inhabitants of an alternate dimension. These inhabitants take the form of shadowy figures that can either be miniscule in size or giant behemoths. While the requirements to call these creatures forth is unknown, it appears to be complicated process that is passed down through a bloodline. As of right now, the only user appears to be Zero of Kirigakure. However, for unknown reasons, she is unable to fully control the shadows she brings forth. As well, she seems to forth a motherly connection to some of the creatures she brings forth and calls them her children.