Bá Nha & Tử Kỳ  

The two best friends during the Warring States period in China. Bá Nha was a mandarin and Tử Kỳ was a lumberjack. Despite his lower social status, Tử Kỳ was extremely knowledgeable about music.

Bá Nha played Dao Cầm (a musical instrument). Legend has it that when Bá Nha played music, only Tử Kỳ understood it.

Therefore, after Tử Kỳ's death, Bá Nha broke his musical instrument and swore he would stop playing music for good. The legendary friends now are used as an example of precious friendship.