Alternative:
Sakasama No Patema: Another Side
Synopsis:
A floating ring has been passed down through Mikko’s family for generations. Her grampa told her that the ring bears a promise of reuniting with lost ones who departed to the “other world.” Mikko explores her world — an endless network of tunnels — in hopes of finding the “other world” one day… This is the side story to the film Inverted Patema.