I stayed in a Western-style single room for one night on Saturday and Sunday on a solo hot spring trip.◯ RoomThe room itself was built like a business hotel, so it didn't feel like a hot spring inn. If anything, I think it was used as a nap room for employees in the past (this is just my imagination, so I'm very sorry if I'm wrong) ) The room was a bit old and simple, but it was sufficient for a solo traveler.All amenities are available, as well as tea sweets and teabags of sencha. There was also a refrigerator and bottled water.The yukata was so ``glued'' that it was difficult to put it on for the first time, which surprised me (in a good way, as I had never experienced this with a yukata at an inn).However, the distance to the public bath and restaurants was far, so it was a bit of a hassle for me to get around as I like to bathe in the hot springs many times.◯ MealSince my plan didn't include a meal, I ordered whatever I wanted for dinner at the in-house izakaya, Haruki Chaya. Even though it's inside the building, the prices are relatively reasonable, and I think it's about the same price as going to an izakaya in the city.It was a small restaurant with about 10 people sitting at sunken kotatsu tables, and was served by 3 to 4 employees. When I checked in, I was asked if I wanted to use the izakaya, so I made a reservation on the spot, but when I was staying there, there were enough seats available that I could have entered without a reservation.The taste was delicious. There was a wide variety of alcohol (Japanese sake), and there was also a sake comparison set on the menu. I ate my fill including alcohol, and it was a good value for money at just under 4,000 yen.I was thinking that it would be nice to be able to eat breakfast in the hotel, but there were no specific instructions and the shop inside the hotel didn't have anything that could be breakfast, so I went to Daily Yamazaki near the inn and had a sandwich and drip coffee. I procured some, brewed some coffee with boiling water from Arayu, and took it back to my room. The "hot spring coffee" was difficult to enjoy due to the soft texture of hot water and the aroma of hot springs, so if you are interested, please give it a try.◯ Hot springIt was great. There is a large public bath in the basement and a bath with a view (and a family bath) on the top floor, which I took three times on the day of check-in and twice in the morning of the next day. The large public bath in the basement is changed at night, but the observation bath is for men and women only. It's a type of hot spring that has very soft water with a slight slimy feel and a slight hydrogen sulfide odor.It was the best hot spring for me, who values the smell and texture more than its efficacy.The bath with a view appears to have a free-flowing bath. There was no mention of the underground public bath, but I feel like it's probably a circulation system (I thought there was a slight chlorine smell, but I might be wrong). The observation bath is not very large, with only a bathtub and a washing area, but the tatami flooring allows you to see the Yumura hot spring town in front of you. The windows were open when I stayed, so it had a nice open feel.The large public bath in the basement had an indoor bath and an open-air bath, and the open-air bath was a "standing bath" type with a water depth of about 100 to 120 centimeters. Both the indoor bath and the open-air bath are very large, and when I went in before dinner, it was reserved for private use, so it was even more amazing. I was told that there was a bedrock bath, but the bath on the first day had a sauna instead of a bedrock bath, which was a little disappointing since I was looking forward to the bedrock bath, but I was able to fully enjoy it the next morning. I did.There were plenty of hand towels in both changing rooms, and there were bath towels in the room, but I was able to dry myself with just the hand towels.◯ ServiceSince I was staying overnight without meals, I didn't have many opportunities to talk to the employees, but I was able to spend the two days comfortably, helping them at dinner and greeting each other when I passed them in the aisles. When we checked out, employees lined up near the front desk to see us off. In addition, even after taking a bath, we received the hospitality and courteous customer service that is typical of a Japanese inn, making it a comfortable hot spring trip.◯ General reviewAlthough it may not be as well known as Arima Onsen or Kinosaki Onsen, the experience at the hot spring town and inn, and above all, the hot spring itself, was so wonderful that I would want to come back and stay there again.Although it is a little far from Osaka and Kobe, I would definitely like to visit again.