If you're looking for anime similar to Mahou Sensei Negima! ~Mou Hitotsu no Sekai~, you might like these titles.
Tasuke is an ordinary schoolboy who is protected by two rivaling guardian spirits, Shaorin and Ruuan. When a third spirit named Kiryuu enters the fray with the apparent purpose of making Tasuke's life a living hell, it’s once again time for Tasuke to demonstrate how any problem in the world can be solved by being a generally nice -- if a bit wishy-washy -- guy. But Shaorin, whose world has been turned upside down, must now learn to cope with new and unfamiliar emotions, as well as discover the true meaning of love.
Shichiri Tasuke is an average teenager, who lives on his own while his archeologist father roams the globe searching for ancient artifacts. One day, Tasuke receives a package that contains one of these artifacts, and from it appears Shaorin: a guardian spirit charged with protecting the person who brings her forth. Shortly thereafter, a second artifact arrives which contains another spirit, Ruuan, whose job is to bring her master happiness. Unfortunately, Ruuan and Shaorin are old rivals and they cause no end of trouble while vying for Tasuke's attention.
When four young Fairy Tail members unite, their bond is forged by a power found in neither muscle nor magic and grows stronger with every mission. Whatever you do, don’t mess with these friends or you’ll get a taste of Natsu’s flaming fist or Gray’s ice hammer, suffer a painful blow from one of Lucy’s celestial spirits or catch the edge of Erza’s mighty blade! Whether they’re stopping demons from devastating the world or wrestling in the mess hall, this mystical team manages to inflict as much damage to their rivals as they do to the surrounding area!
Aster is a young boy who dreams of becoming the greatest mage in the kingdom. Only one problem–he can't use any magic! Luckily for Aster, he receives the incredibly rare five-leaf clover grimoire that gives him the power of anti-magic. Can someone who can't use magic really become the Wizard King? One thing's for sure–Aster will never give up!
As Kiyomaro races to catch the bus to seaside camp, little does he know that Dr. M2, a demonic magic scientist from the future, has sent out a robot to kidnap him. He's trapped in limbo with the mad magic scientist who wants to be his partner and an army of Vulcan robot lookalikes. Dr. M2 sends a robot to pretend to befriend Gash, keeping him away from Kiyomaro until M2 can abscond with the teen genius to the future. In the end, it comes down to saving the world with a little help from their friends...