It appeared in my discord server. It's not Japan by the way. No one in server has answered it yet.
To add to CookieShovel's answer, that is the character representing the Zhou Dinasty.
From Wikipedia:
The Zhou dynasty ([ʈʂóʊ]; Chinese: 周)[c] was a royal dynasty of China that existed for 789 years from c. 1046 BC until 256 BC, the longest of such reign in Chinese history.