Definition of "mediakin"

Simultaneously, the Otherkin highly proximate relationship to popular fictional narrative clearly locates such beliefs within the framework of hyper-real religiosity. This relationship becomes most apparent within the context of Otakukin and Mediakin, and related concepts such as soulbonding, but is nonetheless present within the broader community as well.

2012, Adam Possamai, Handbook of Hyper-real Religions‎

This community was originally for those who believe themselves to be fictionkin/mediakin/otakukin, however we accept Soulbonders with Bonds from fictional sources, people who are unsure or the plain old curious folks.

2014, Danielle Kirby, Fantasy and Belief: Alternative Religions, Popular Narratives, and Digital Cultures‎, page 46

Once such group's members subscribe to a metaphysics that considers fictional worlds fully real, or that regards what most view as reality as another fiction. Included here are fictionkin and mediakin, people who claim spiritual or soul [...]

2018, Hugh Urban, Greg Johnson, Irreverence and the Sacred: Critical Studies in the History of Religions‎