In Blue Exorcist, the Grigori serve as a counsel ... She also sealed the King of the Earth, Amaimon, with her crystallization into minerals. However, Shemihaza only crystallized a part of Amaimon ...

The second episode of Blue Exorcist Shimane Illuminati Saga seeks ... it also enabled the other Eight Demon Kings to receive one, which is how Amaimon received his human body.