Pretty Cure All Stars: Spring Carnival

Odoren and Utaen came to Harmonia specifically to steal the Pretty Cures' transformation items. They used the carnival as cover, convincing the Go! Princess PreCure Cures to perform on stage as a distraction while they secretly captured the fairies and stole the transformation items. This plan allowed them to gather all the items and seal them in a chest, preventing the Cures from transforming.

Earlier, Odoren and Utaen descended on Harmonia under false pretenses, signaling their hidden agenda.

While the Go! Princess PreCure Cures were performing on stage as requested by Odoren and Utaen, the villains secretly captured the fairies that accompanied the Cures and took their transformation items. By the time the Cures realized what was happening, all the items had been gathered and sealed away in a chest, blocking their ability to transform.

The villains manipulated the carnival by asking the Cures to perform, creating the perfect distraction.

The Dress Up Keys are powerful transformation items used by the Go! Princess PreCure team. When the villains sealed the transformation items in the chest, the Dress Up Keys were also locked away. These keys were essential for the Cures to access their full power and transform into their enhanced forms to fight the villains and protect Harmonia.

The Dress Up Keys were mentioned when Megumi and her team were introduced as Go! Princess PreCure Cures.

Haruka, believing in the power of song, joined Minami and Kirara in a heartfelt performance at the carnival stage. This sincere act of singing from the heart awakened the Dress Up Keys, which then freed the locked transformation items and restored the Cures' ability to transform. The power of their collective song breathed life back into the keys.

Earlier, Minami complimented Haruka on her singing ability, and Kirara panicked about a singing exam, hinting at the importance of singing.

The dragon is actually a deity that watches over Harmonia. The royal family reveals that the Spring Carnival's true purpose was to appease this dragon through music and dance. When the Cures interrupted the festival to fight the villains and the items were stolen, the dragon interpreted this disruption as a failure to honor the tradition, causing it to awaken in fury and threaten the kingdom.

The royal family hints at the festival's deeper purpose when they reveal why the carnival existed.

Primavera Elegant Mode is an enhanced transformation that the Cures achieve by channeling the power of their song through the Dress Up Keys. After Haruka's singing awakened the keys, the Cures combined their musical powers to access this stronger form, which allowed them to perform the Pretty Cure Rainbow Tornado attack that finally calmed the angry dragon.

The Dress Up Keys were awakened by Haruka's song, enabling the Cures to access their full power.

After being defeated by the Cures, Odoren and Utaen were not punished severely but instead were repurposed as the kingdom's janitors. This comically benign ending fits the light, whimsical tone of the Pretty Cure franchise, where villains are often reformed or given minor roles rather than being destroyed.

The film's tone is described as overwhelmingly whimsical and light, with conflicts resolved through positive means.

While it appeared to be a celebration for the Pretty Cures to perform and showcase their talents, the Spring Carnival's actual purpose was to appease the dragon deity that protects Harmonia. The festival was held through music and dance to keep the dragon calm and maintain peace in the kingdom.

The royal family reveals this purpose only after being rescued by the Cures.

Kirara Amanogawa, also known as Cure Twinkle, panicked when Minami mentioned a singing exam because she was nervous about Haruka's singing ability. This subplot is resolved at the end when Haruka, inspired by her experience in Harmonia, becomes more determined to sing and ace the exam, showing character growth and renewed confidence.

The mention of the exam sets up Haruka's character arc of overcoming her fear and gaining confidence in singing.

The film brings together Cures from multiple Pretty Cure series: the HappinessCharge PreCure team (including Minami as Cure Mermaid and Kirara as Cure Twinkle) and the Go! Princess PreCure team (Megumi, Hime, Yūko, and Iona). Initially surprised by each other's presence, the teams united to face the threat, with Haruka's song ultimately allowing all of them to combine their powers against the villains and the dragon.

The invitation to the carnival explicitly called for all Pretty Cures to perform.