Blue Exorcist AU - Where the Okumura twins have equal powers and they understand the world of demons at a young age. When their adoptive father sacrificed himself, the twins grow up in a cabin in the middle of the woods with a couple of low-level demons. As they come across True Cross Academy and their lineage, what are they going to do? Author: i made this as a coping mechanism

Before the Tornado of Creation could send them off, the Oni pull off a feeble attempt to rid the world of their protectors. The ninjas are casted away, leaving the monastery empty. A school day has finished and the students are rushing out, only to be greeted by a large ethereal rip. The two worlds must help each other to defend the worlds from the Oni, ready to strike again...