A papier mached mask depicting a fierce and wrathful expression, representing a Kongo-rikishi (Nio 仁王) protective guardian spirit , the guardian deity, that protects Buddhism. It is made of mached traditional Japanese paper (washi) and glue, coated in layers of rich red and black Negoro-style lacquer. The mask features deeply furrowed brows, popping veins, bulging eyes, flaring nostrils, and a grimacing mouth revealing bared teeth - all rendered in bold, exaggerated relief to enhance dramatic presence on stage. A coppery flame-like crest rises from the top of the head, further emphasizing its divine or supernatural identity. the reverse shows old labels with Japanese script '執金剛神' which signifies a deity that protects Buddhism.