|English||Spanish for "Molting"
Japanese for "Snake-Husk Fortress"
Muda (蛇殻砦 (ミューダ), myūda; Spanish for "Molting", Japanese for "Snake-Husk Fortress"; Viz "Snake Shell Fortress") is a technique used by Cyan Sung-Sun of the Tres Bestias.
Sung-Sun sheds her skin, which proceeds to expand and envelop a dome-shaped area around her, rendering the space invisible and concealing those within. The technique works through a combination of optic camouflage and a barrier of Reiatsu, which blocks sensory abilities.