Hirogaru Sky! Precure

In peaceful Skyland, the infant Princess Ellee is kidnapped by a monster from the Undergu Empire. Sora Harewataru, a girl who dreams of becoming a hero, leaps after the princess and falls through a mysterious portal into Sorashido City, a world full of unfamiliar things such as televisions, bicycles, and everyday human technology.

Sora meets the gentle Mashiro Nijigaoka and discovers that protecting Ellee awakens the power to become Cure Sky. Their effort to return the princess home grows into a fight spanning two worlds, joined by new allies who each find their own form of courage. For Sora, becoming a hero stops being a distant dream and becomes a promise she has to live up to every day.