A perverted lingerie stealing (once again a throw back to the typical manga male stock character archetype), chain-smoking, talking ermine, (though he has a long, and prehensile tail), that Negi freed from a trap when he was five years old. Since then, Chamo has been going to Negi whenever he ran into trouble.  Chamo cares strongly for Negi and will fight to protect him, but he is not above using him to try to make a fast buck. Chief among those methods is attempting to make probationary contracts between Negi and as many of his students as possible, since the act nets him 50,000 Ermine Dollars per contract.  Chamo often acts as Negi's trusty advisor in most things, though there are times his judgement and/or advice leaves much to be desired. He is skillful at analyzing dangerous situation and coming up with countermeasure when most of the others are in state of panic, but his plan usually have big flaws in it, a point that he often admits blankly. He is also quite good at analyzing individual strength and character, and puts them in good use during times of need.  He normally suffers Asuna's wrath whenever his schemes are discovered or he is caught in one of his perverted acts.  As a side note, being turned into an ermine is one of the punishments that Negi's magic academy gives, however Chamo is not a mage turned into an ermine, but actually a type of elf/fairy/Cait Sith (which he says he is very proud of). (Source: Wikipedia)

After graduated from a magic academy, 10-year-old genius boy Negi Springfield was assigned to a huge Japanese school as an English teacher for practical training. To his surprise, the 8th grade class assigned for him is all-girl. In addition to teaching (and being teased by) those 31 pretty girls while trying to keep his magic capability in secret, he's also looking for clues about his father, who was once known as "Thousand Master" but mysteriously disappeared years ago. 
(Source: Anime News Network)

Negi Springfield, the boy wizard of the hit manga Negima!, fought and won many battles. Now it is decades later and Negi’s grandson(!), a little boy name Touta, dreams of leaving his quiet village and heading to the City. But first he must defeat his teacher … the immortal vampire, Evangeline! Witness the dramatic beginning of a futuristic battle fantasy
 
(Source: Kodansha USA)

10-year old Negi Springfield is a wizard-in-training, and needs only to pass one more test in order to become a Master Wizard. Unfortunately, his final task is a bizarre one- to become a English teacher at an all-females boarding school. As soon as he arrives, he completely embarasses one of his students, Asuna Kagurazaka, and replaces the teacher she loves, which garners her hatred. To make matters worse, Asuna learns that Negi is a wizard,and promises to tell unless he helps her out. But, unfortunately, circumstances force them to work together to do many things, from fighting evil wizards to helping the class pass their final exam, with a lot of humor, magic, and romances thrown in.
 
(Source: Anime News Network)

A remake of the Negima anime with its own original story. 
Wizard Negi Springfield may be a boy, but he has a man-sized job to do! Fresh from the Academy of Magic, Negi continues his training as an instructor at Mahora Academy in Japan. But before he can get his Masters in magic, the 31 schoolgirls of Class 3-A are gonna keep him up all night cramming for a final exam in will power. Temptation aside, Negi has more on his syllabus than flirting and spells. Darkness is closing in, and Negi is gonna need help from his lovely student bodies to drive the ghouls from their school. These girls want to prove that they're the best in class, and extra credit is available to the cuties that aren't afraid of after-hours phantom fighting! 
(Source: DVD case)

This is a series of OADs covering some of the Magic World manga arc by Ken Akamatsu, starting with chapters 184 through 188. Unlike the first and second anime seasons, the character designs are very accurate.

OVA episodes that are bundled with the limited edition of the manga volumes 23-25. First episode to cover chapters 176 and 177 of the manga. Second episode to cover chapters 178-180. And third episode to cover chapters 182 and 183.

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...?

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.
 
(Source: Anime News Network)

Negi Springfield is ten years old... and a powerful wizard! This boy wizard is the greatest prodigy ever to graduate from his magic school in England. After graduation, however, Negi's given an unusual assignment: to teach English at an all-girl school in Japan. Now Negi has to find a way to deal with his 31 totally gorgeous - and completely overaffectionate - students... without using magic!
 
(Source: Del Rey)

The "0th volume" of the Mahou Sensei Negima! manga was released with the Mahou Sensei Negima! Anime Final film. It contains a side story and production materials such as the anime storyboards he drew for the opening animation footage of the original anime DVD project. 
 
(Source: Anime News Network)

Albert Chamomile