Shinzan Shrine — Namahage Costume Rituals

Shinzan Shrine (真山神社) in Oga Peninsula is the spiritual home of the Namahage tradition, where ritual demon costumes are blessed annually during the Namahage Sedo Festival on the second Friday-Sunday of February. The festival is a Shinto purification rite where men dressed as Namahage descend the mountainside carrying torches, roaring and stamping to drive away evil spirits. At the shrine, Namahage perform exorcism dances (taiko-accompanied) while priests chant prayers. The event is both solemn religious ritual and visceral performance — firelight, snow, drumming, and roaring demons create primal atmosphere.

The shrine itself is modest — a wooden structure nestled in cedar forest on Mt. Shinzan's slope. During non-festival periods, the shrine is quiet and meditative, with a small museum displaying historical Namahage masks and costumes. The climb to the shrine (15 minutes from the parking area) passes moss-covered stone lanterns and towering trees, evoking Shinto's connection to nature. Visiting Shinzan provides cultural context for Namahage beyond the tourism-focused museum demonstrations.