Uniquely designed with Shigaraki ware ceramic plates kneaded with radium ore. It gently warms the body, allowing for slow and deep core warming. Unlike high-temperature dry saunas, the far-infrared effect evenly heats the body from within, naturally promoting sweating. The spacious design allows for comfortable seating, and after sweating, you can smoothly transition to the cold plunge bath and outdoor air bath for a gentle recovery.

Utilizes 'body-friendly' water enhanced by the negative ion effects of premium Binchotan charcoal. Unlike regular tap water, the charcoal filtration smooths the water, making it gentle on the skin. Positioned along the sauna route, it allows for a seamless flow of rinse → immersion → outdoor air bath. Although sharply cold, it is not overly stimulating, allowing body heat to dissipate quickly and calming the body efficiently. Compact yet effectively cools down the body.