A high schooler accidentally becomes the conduit between the living and the dead through Edison's spirit phone, and suddenly every historical figure you thought you knew is waiting on the other side with a lesson. The film builds a cosmology so dense and specific that it either clicks completely or alienates you within the first twenty minutes. Animation quality and world-building ambition are undeniable, but this isn't a neutral adventure: it's a spiritual argument wrapped in fantasy, and the film knows exactly which worldview it's selling you.
Ryuta's curiosity about the paranormal sparks when he and his science club stumble upon an exhibit dedicated to Thomas Edison's lesser-known experiments. Among forgotten sketches and theoretical notes lies a concept that bridges the living and the dead: a machine designed to receive messages from beyond. When a mysterious shaman appears with a cryptic claim about Edison himself, Ryuta receives an unexpected gift. Knowledge downloads into his mind, complete and urgent, giving him everything needed to build what Edison never could. What begins as a skeptical engineering project transforms into something far stranger. Constructing the device opens doors that should have remained closed, pulling Ryuta into a spiritual realm where the boundaries between science and the supernatural blur completely. Edison's unfinished work becomes the key to understanding forces far older than electricity and invention. As Ryuta ventures deeper into this hidden world, he discovers that some frequencies connect to truths about existence itself, and some messages were always meant to be found.