This one only works if you put in the hours, and that's exactly the point. Six of the thirteen get the spotlight for Chapter 1, and the split cast means Ayumu, Kasumi, Shizuku, Kanata, Emma and Lanzhu actually get room to breathe instead of the usual roll call. Lanzhu standing shoulder to shoulder with them in Okinawa for the School Idol GPX lands differently when you remember where she started in season two. The performances are where the money went: the 2D-to-3D handoffs are clean enough that you stop clocking them mid-song, and the new outfits earn their screen time. Yuu gets pushed to the margins as Ayumu's girlfriend, which will annoy some people and quietly delight others who just wanted it stated plainly. No stakes, no villain, no crisis. Just people you've followed for years being loved on for ninety minutes, and it gets you anyway.
The Nijigasaki idols face their biggest challenge yet when they compete in the School Idol GPX, a prestigious nationwide competition held in Okinawa. Ayumu, Kasumi, Shizuku, Kanata, Emma, and Lanzhu must navigate intense performances, new rivals, and the pressure of representing their school on a national stage. As they prepare for the tournament, each member confronts what it means to push themselves to their limits while staying true to their bond as a group. The competition tests not just their vocal and dance abilities, but their commitment to each other and their dreams. Surrounded by talented idols from across the country, the group discovers that winning isn't just about technical perfection, but about connecting with audiences and finding their unique voice as performers. This first film sets the stage for an emotional and high-stakes journey that will reshape what these girls understand about friendship, ambition, and what it takes to shine on the biggest stage.