Arugo no Yu is a recently built in 2014 or 2015 this supersento is connected to a pachinko parlor. The baths are very well made and many out of the soft concrete which I personally enjoy. One of the outdoor baths on the corner of the building offers a few of the Kanzakigawa river. One of the baths had a large cedar (I think) tree trunk in it for floating on. That was unique and fun to play around with.