Mahou Sensei Negima!: Mou Hitotsu no Sekai

魔法先生ネギま! ~もうひとつの世界~

Sep 17, 2009 to Aug 17, 2010 Finished Airing ★ 7.56

4 sub eps

This is a series of OVAs covering some of the Magic World manga arc by Ken Akamatsu, starting with chapters 184 through 188.