Iina springs to life as the incarnation of an Okinawan shisa lion statue, a guardian figure from Ryukyuan culture. She is one of three spirits entombed within a Chinese banyan tree, released alongside the jimunaa spirits Niina and Raana when the tree's seal shatters. Born from a protective object, Iina embodies the traditional shisa role of safeguarding spaces and repelling malevolent forces. Her liberation directly triggers the emergence of other supernatural entities in the vicinity.