[Otaru Retreat Kuramure] A Journey to Align from Within Through Fermentation. Launch of Hokkaido's First Guaranteed Enzyme Bath Plan

"Otaru Retreat Kuramure by Onko Chishin" (Location: Asarigawa Onsen, Otaru City, Hokkaido, General Manager: Hiroki Yoshii), operated by Onko Chishin Inc., which produces "inns that become travel destinations (= destination hotels)," will begin selling an "Enzyme Bath Guaranteed Plan" that includes an enzyme bath experience, and a "Private Hot Spring Guaranteed Plan" that includes the use of a private hot spring (open-air bath, sauna, and raw spring water bath) for stays starting Wednesday, April 15, 2026.

Enzyme Bath Supervised by Ohtaka Enzyme, with a 100-Year Tradition in Otaru ### Background of Introducing the Enzyme Bath Based on the concept of placing "brewing (kamosu)" at the core of the stay, Otaru Retreat Kuramure has introduced an enzyme bath in an accommodation facility for the first time in Hokkaido*.

Under the supervision of Ohtaka Enzyme, which has inherited the fermentation culture in Otaru for 100 years, an enzyme bath that shapes Hokkaido ingredients and fermentation wisdom into a stay experience has been installed in the facility. Taking advantage of the overnight stay, we have incorporated an opportunity for guests to feel the blessings of this land and the concept of "brewing (kamosu)".

*As of April 2026, based on internal research among accommodation facilities in Hokkaido

### Enzyme Bath that Awakens the Circulation of Mind and Body An enzyme bath is a hot bathing method where you immerse yourself in a bathtub of sawdust heated by natural fermentation heat, created by adding Ohtaka Enzyme's undiluted fermentation liquid to sawdust from Hokkaido coniferous trees.