Hyouge Mono - Vol. 5 Ch. 43 - Hole of Simplicity

[MangaDex]

 

[Grimmycoffee]

For the square tea bowl image, this is the closest thing I found so far: https://www.jpf.go.jp/e/project/culture/exhibit/oversea/2015/06-01.html

If anyone got a better one, please reply so I know about it 🫡