This is the one you put on when the world has been too loud, and forty minutes later your shoulders have unclenched. It runs on pure confection logic: Sweetsland sits right next door to Jewelland, the princess has a birthday, and the entire plot machinery is Ruby and the Jewelpets rehearsing a dance number until the sky literally drops a problem on them. That mystery object and the unnamed Sweetspet boy inside it are the only real friction here, and the movie treats him as a puzzle to solve rather than a soul to excavate, which is exactly the deal you signed up for. Nobody is going to interrogate their trauma. Nobody is going to die. Ruby is going to make a mess of the preparations and it will be fine. Sometimes the correct answer is a birthday party in candy country, and you know it.

In Sweetsland, a country that lies next to Jewelland, Ruby and the other Jewelpets are marking the princess's birthday with a celebration built around dancing. While everyone is getting the party ready, a mysterious object descends from the sky. Inside it is a Sweetspet boy, and nobody knows who he is. The film is a fantasy adventure in the magical girl tradition.