Riadne is a female Arachnomancer first met in the Ravenloss Weaving Emporium. She has been studying ChaosWeavers, but Greed set his eyes on her and kidnapped her. In the end of the Ravenloss Arc her eyes flash two green E's, hinting that she may be controlled by Envy, one of the three Corrupt Elemental Spirits Tomix has been hunting down. In the Ravenloss Saga she serves as Tomix's love interest.