Sakasama no Patema: Another Side  

Patema Inverted another side, Inverted Patema: Another Side, サカサマのパテマ another side

The film Inverted Patema features a side story about a floating ring that has been passed down through the Mikkos family for generations. According to her grandpa, this ring holds a promise to reunite with loved ones who have gone to another realm. Mikko embarks on a journey in search of this "other world" by exploring an infinite network of tunnels.