氷輪丸

Master: Toushirou Hitsugaya

Hyourinmaru is the manifested spirit of Toushirou Hitsugaya's Zanpakutou that is seen during the Zanpakutou Unknown Tales arc. At any time, Hyourinmaru can take the form of a gigantic, icy blue, serpentine dragon with large wings and an echoing voice.