Among the Noh costumes are Hikari-kariginu and Shokko no nishiki, which are said to be Emperor Seiwa's clothes and designated as tangible cultural assets of Yamagata Prefecture, and some of the Noh masks are considered to have been made in the early days of Noh.
使われる衣装類には山形県有形文化財に指定されている光狩衣・蜀紅の錦といった能衣装は清和天皇の御衣とされ、中には現在で言う能楽の発生初期のものと見られる能面もある。