Arachnophobia
Arachnophobia (アラクノフォビア, Arakunofobia?) is an organization created by the witch Arachne before she first disappeared 800 years prior to the story. It directly opposes DWMA's ideals of world order, becoming a major antagonistic force in the story. The group is dissolved after Arachne is killed during DWMA's raid on their base of operations, Baba Yaga's Castle.ep. 49
Read more about this topic: List Of Soul Eater Characters, Antagonists