Go! Princess PreCure is set in a boarding junior high school, named Noble Gakuen (Noble Academy). The protagonist Haruka Haruno is a 13-year-old first year student. Her big dream is to be a princess someday, because she has admired a princess in the picture book she has kept since her childhood. One day she transforms into Cure Flora with "Dress Up Key" which Prince Kanata of Hope Kingdom gave her as a good luck charm when she was little. Then she also finds other PreCure girls in her school, 14-year-old Minami Kaidou as Cure Mermaid and 13-year-old Kirara Amanogawa as Cure Twinkle. As the Princess PreCure team, with two fairies Pafu and Aroma, they decide to fight against dark witch Disupia (or Despair) who hates all the dreams in the world and wants to turn them to despair.

[Source: Crunchyroll]

A spring carnival held in the country of dance and song, Harmonia, is beginning. Haruka Haruno and her friends also join the festival to learn dance and song from their senior Precure warriors. However, the fairies go missing, and the carnival is thrown into confusion. Even worse, the announcers Odoren and Utaen seem extremely suspicious, and the guardian dragon of Harmonia has started a rampage, angry at the chaos at the carnival. In order to protect the peace of Harmonia, the 40 Precure warriors work together to create a miracle through dance and song filled with hope.

[Source: Anime News Network]

The first Precure film to be comprised of 3 parts.

"Pumpkin Ōkoku no Takaramono" (The Pumpkin Kingdom's Treasure) will be a cel-style anime in which the Precure girls set off to rescue a kidnapped princess.

"Precure to Refi no Wonder Night!" (Precure and Refi's Wonder Night!, bottom in image) will be a full-CG anime. In this story, the kingdom of night lost its daytime, and the Precure girls fight alongside the kingdom of night's Princess Refi to take back daytime. Hinata Uegaki (young Nara in Shiki Theatre Company's Osaka stage production of Lion King and the winner of KANJANI no Shiwake Eight's "Musical Kids No. 1" competition) will guest-star as Princess Refi. The 11-year-old girl with remarkable singing ability will sing within the story in her first voice-acting role.

Finally, the "Cure Flora to Itazura Kagami" (Cure Flora and the Vain Mirror, center left) CG anime will be the franchise's first short story with no dialogue. It will feature super-deformed characters. Cure Flora (as a CG character) will interact with a playful spirit that dwells within a mirror.

[Source: Anime News Network]

Mirai and Rico come to the human world to play, but are separated when the witch Sorciere and her servant Torauuma suddenly appear. Their aim is to acquire the tears of the 44 Precure girls, using them for her "Most Evil Magic." Only the friendship of all 44 Precure girls will allow them to protect the world.

[Source: Anime News Network]

A mysterious girl named Sakura appears before Cure Whip. Sakura comes from another world, where one day the evil Karasutengu crow-billed goblin, bent on stealing the world's pretty things, emerges and kidnaps her friend, a fox named Shizuku. Sakura seeks out the Precure for their help.

[Source: Anime News Network]