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 and his fellow science club members visit a museum exhibit about Thomas Edison. There they learn of an invention Edison once proposed, the spirit phone, a device meant to let people talk with the dead. Later that same day the group runs into a shaman who says she carries a message from Edison. In a single moment Ryuta gains the knowledge required to build the machine, and he resolves to do it, setting off a spiritual adventure. The 2006 film blends fantasy and science fiction.