Sometime after all the events which took place during Negi's first year as a teacher, Class 2-A goes on a school trip to a beautiful island for Spring break. Everything is fine now, but troubles continue for Negi, because he's still the main atraction of the class. But he has something else to worry about, Asuna is angry at him because he told her she had nothing to do with his studies as a wizard. During the trip, the situation gets intense as Asuna's friends try to help Negi make up with her.

Yue and Nodoka are practicing magic, and one spell catches their eye: The Red String of Fate. Supposedly, this spell connects you with your fated partner. Nodoka decides to try it out, and ends up tied to Negi. However, this spell isn't the Red String of Fate at all, but is in fact just a red string that connects two people. A magical red string that happens to be impossible to sever. Delightful. Meanwhile, Ayaka invites the class to a free trip to her family's recently constructed spa resort. Tied together for at least a day, will Negi and Nodoka be able to make the most out of this free trip without going too far...?

An animated feature film based on the Negima! Magister Negi Magi manga.