旗: 韩国

This is the Taegeukgi, the flag of South Korea. The Taegeuk symbol in the center represents the harmony of yin and yang, and the four trigrams at the corners symbolize the fundamental elements of nature.

It has become a symbol representing Korean culture and is frequently used by fans of K-pop, K-dramas, and other Korean cultural exports around the world. It is often used on social media to indicate content related to Korea.