Granbelm anime
Long ago, magical was abundant and improved the lives of people until its use in warfare. To finish the chaos, seven of the most effective mages gave up their own lives so as to seal all magical. Now, nearly one thousand decades after, their magical seal Magiaconatus hosts Granbelm, a monthly collection of battles intended to ascertain who among its participants is deserving of this name of Princeps, the sole true mage.At the night of a complete moon, higher school student Mangetsu Kohinata is unexpectedly transported to an illusionary world where six mages are engaging in Granbelm. Mistaken for a enemy mage, Mangetsu is assaulted by 2 mages until she’s rescued by Shingetsu Ernesta Fukami along with her Armanox Viola Katze. But when Shingetsu is ambushed for shielding her, Magiaconatus grants Mangetsu that the Armanox White Lily, permitting her to fight Shingetsu’s assailant.