It is located right in front of the Dogo Onsen Main Building.
It is a quiet, old building, but it is well-maintained.
I don't think there is a better place to stay in Matsuyama for a solo traveler. It is a dormitory, but I couldn't sleep well because there was someone who kept coughing. I think a private room might be better for those who are very sick.
This a very nice hostel to stay at while doing the Shimanami Kaido. It’s close by a famous temple and several restaurants. The staff is friendly, the facilities are very clean and they have free pour over coffee, which is amazing, frankly. I stayed longer because I wanted to spend more time on the island.
The place was very beautiful, in a real Japanese style, I slept on the tatami, everything was very clean and well organised. The owner was also very friendly and available