This is a farewell letter to a ten-year manga, not a spectacle. It knows you've read this far, knows what you lost in the anime adaptations, knows the gap between what the manga promised and what TV could deliver. The film doesn't try to fix that gap with fights or new ideas. It sits with the ending the manga earned and lets you exist in it for ninety minutes. That restraint costs everything, you need to have loved the original story enough to grieve it.
Negi Springfield, a ten-year-old Welsh wizard, hopes to one day become a Magister Magi, just as his vanished father was. Assigned to Mahora Academy in Japan as an English teacher, he finds himself responsible for a middle school class of 31 girls, every one of them older than he is. People connected to his father's history soon upset that calm school life, so Negi makes contracts with several of his students to meet the dangers. In time he sets out with these partners for the Magic World in search of his father. Adapted from Ken Akamatsu's manga, the film serves as the culmination of the story told in the Shiroki Tsubasa Ala Alba and Mou Hitotsu no Sekai OVAs, mixing adventure with supernatural elements.