Obscurite Magie 3: The Divine Stones [オプスキュリテ・マジー ～ 女神の精霊石]

Cialis of the Royal Knights of Alzario is ambushed by an evil group of heretical fanatics that call themselves Regalus. Backed into a corner and on the verge of defeat, she has no choice but to form a pact with the spirit named Myuei to fend off the heretical fanatics.