The Nijigasaki girls have already won you over by now, so this isn't about plot, it's about watching them exist in motion, in spaces that feel real enough to live in. The animation breathes in a way most music anime don't, turning idol performances and quiet character moments into the same kind of visual event. If you made it this far, you're not looking for a reason to care. You're looking for an excuse to spend two hours with people who feel like friends.
The second film in the Kanketsu-hen trilogy picks up the story of the Nijigasaki High School idol club after the second television season and the OVA. As the middle part of the closing trilogy, it carries the series on toward its finale. Fans of the franchise can expect a music-focused slice-of-life film centered on the school idol club.