Hi no Tori "Dougo Onsen-hen"
Genres: Supernatural
Type: ONA, Episodes: 4
Aired: May 24, 2019 to Nov 20, 2020
Studio: Pony Canyon
Source: Manga
Rating: G - All Ages
Synopsis:
A collaborative anime between Hi no Tori and the Dougo Onsen hot spring bath house. The anime is part of a revitalization project for the Matsuyama, Ehime Prefecture bath house that began on January 15. The Dougo Onsen building is 125 years old and certain areas were due for a facelift. 

(Source: ANN)