Senmen

 (千面, Mask of Thousand) is a powerful and cursed item that is stated to have been created from the blood of demons. Upon donning the mask, the user becomes the Crawling Chaos (躄乱麻, Izari Ranma; Literally "Chaos Crawling on the Ground").

Trivia

 * The name Crawling Chaos is taken from the works of the author, and his creation the . To which is known as the Crawling Chaos.