Negi Springfield and his Ala Alba companions scatter across Mundus Magicus after their trip to find Negi's father takes an unexpected turn, and this fourth OVA set follows their attempts to reunite. Evangeline McDowell, Asuna Kagurazaka, Setsuna Sakurazaki, and Chachamaru Karakuri each pursue their own thread of the search while Negi works to master a dangerous technique called Magia Erebea and prepares to enter a fighting tournament. It adapts chapters 184 through 188 of the manga, material the TV series never covered.