In this post we take a look into historical roots of the Chawan Sign seen in Shenmue, as well as its mention in other media - notably the Kenji manga.
Does the Chawan Sign in Shenmue Have a Historical Basis?
https://www.phantomriverstone.com/2024/03/does-chawan-sign-in-shenmue-have.html
Does the Chawan Sign in Shenmue Have a Historical Basis?
https://www.phantomriverstone.com/2024/03/does-chawan-sign-in-shenmue-have.html