A retractable-seat Bona sauna that heats the seating and walls throughout, this is a traditional ultra-high-temperature dry sauna. It is a blistering space approaching 100°C; enthusiasts even say it makes löyly unnecessary and that it's so hot you can hardly breathe. Guests can sit and sweat profusely while watching TV. This is a classic, authentic 'Showa-era blistering sauna' sought after by advanced sauna users, where dry heat envelops the whole body relentlessly from the moment you enter.

A high-humidity steam room that contrasts with the dry sauna, enveloping the body in moist steam. In this quiet space without a TV, you can focus on sweating while surrendering to gentle steam. Many sauna-goers use it before or after the ultra-hot dry sauna to warm up slowly or to linger in the afterglow toward totonou.

A large cold plunge bath boasting an impressive depth of 110–140 cm. The immersive sensation of being fully submerged creates an experience unlike other facilities. A unique feature lets you press a button on the wall to trigger a powerful falling-water jet from above for 3 minutes, producing a distinctive cool-down experience where water flow and chill combine.