Lieu de l'œuvre
Okawaso (Ashinomaki Onsen)
The ryokan whose atrium fans identified as the model for the Infinity Castle.
Okawaso is a hot spring ryokan in Ashinomaki Onsen, south of Aizu-Wakamatsu. Its central atrium — a large open well with a stage suspended in the middle and floors stacked around it — is widely identified by fans as the model for the Infinity Castle. This is fan identification rather than an official statement, and the ryokan is a working hot spring inn, not an attraction.
Pourquoi ça vaut le détour
You can stay the night in it. Very few anime locations offer that.
Quand y aller
Rooms book out in peak season. The atrium itself is inside the ryokan.
Bon à savoir
This is a business serving overnight guests. Book a stay or a day-use bath rather than walking in to photograph the lobby. Check the day-use schedule in advance — it is not available at all hours.
Demon Slayer
The atrium of this ryokan is widely identified by fans as the model for the Infinity Castle. Fan identification, not an official statement.