Negima! - Ken Akamatsu

After their adventures on a school trip to Kyoto, you'd think that Negi and his students would want to rest. But now that they're back at Mahora Academy, relaxation is pretty low on the list! Firstly there are Asuna's dreams, which hint at a deeper relationship between Negi and his father of which she is unaware. Then Negi starts a quest to improve his abilities. To do this, the teacher will need to become a student - and Negi's students will become his teachers.

Ku Fei is a master of every martial art imaginable, but can she teach Negi the skill he needs to survive? And there's only one magic user at Mahora Academy with abilities that surpass Negi's own. Dark Evangeline might train him, but only at a price - and does Negi really want to be Evangeline's personal slave?