Arika, the princess of the Vespertatia royal family, was the leader of Ostia, which was the nation most actively trying to end the war before end the war before ruin. For this, she needed "the invincible" Ala Rubra on her side. After she came in contact with Ala Rubra in the confederation, she was captured by the organization (for unknown reasons) after she was on her way back to Ostia. At the same time, Ala Rubra were accused of being traitors, and had to escape from their former allies. Caught in that trap, pursued by both the empire and the confederation, they manage to fight their way towards the place where Princess Arika and Princess Theodora of the Hellas Empire were being held captive. Then Ala Rubra and the two princesses escaped to the Ala Rubra hide out. There, they suggested that the higher-ups in Ostia were heavily corrupted by the enemy which lead to the conclusion that they had no allies in the empire, the confederation, or Ostia. During the final battle, Arika was able to gather allies to contain the magic that would have destroyed the world. The specifics regarding what happened to her afterward are currently unknown. In the Manga, she was revealed to be Negi's Mother, and in chapter 252 the New Ostia Governor-General described Negi as the "Orphan son of Arika". Since the term "orphan" was used, it implies that she died. In chapter 257, it's revealed she was tried in the national courts and executed 18 years ago for being suspected in being in league with Cosmo Entelecheia, but seeing as Negi was born 10 years ago, it was a government cover-up after she was rescued by Nagi.