The beautiful Krieger sisters, who may-or-may not be Valkyries, have transferred into the renowned Mount Castle High School for Girls. But once there, the sisters quickly take an interest in a good natured student named Emilia, and the activities of the school itself.

But the longer they stay, the more things get demonic and dangerous.

WARNING: Multiple POVs, magic battles and fighting, Girls love, no dudes. Slice of life but with action. School girls doing girly stuff. Mature content. Good times.