Hinanoyado Anrakuso is a small 9-room hot spring inn located in Andai Onsen within the Yudanaka Shibu Onsen area of Yamanouchi Town, Nagano Prefecture. Andai Onsen dates back to 1705 when a bathhouse was established on the riverbank of the Yokoyu River, and has flourished as a therapeutic bathing destination since the Edo period. The hot spring features sodium chloride-sulfate water with a mildly alkaline pH of 8.3 and a source temperature of 93 degrees Celsius, offered as free-flowing natural hot spring water. The colorless and transparent water is known as a beautifying hot spring, leaving the skin feeling smooth when touched while wet. The inn has two indoor baths available 24 hours, and all guest rooms are equipped with hot spring water. Meals are served in private dining rooms for breakfast and dinner, and the inn is praised for its relaxed atmosphere where guests rarely encounter other visitors. The inn is situated in a charming hot spring town with stone-paved streets, adjacent to Shibu Onsen.