Fate Averruncus is a mysterious young man who challenges Negi and is set to destroy the Magical World. He has some unknown link to Negi's father.
Despite being over 20 years old Fate look like a kid in his 12 years old. Possibly due being a construct. After being defeated by Negi and befriending him he once used an age change pill that make him look a bit older as if he was in his teens and after the pill effect worn off he return to his original look.
Mahō Sensei Negima: Anime Final
Ala Alba have return from the Mundus Magicus. This movie is an alternate ending to the manga Negima!