In 494 BC, during the war between Wu and Yue, Yue was defeated by Wu. King Goujian of Yue was forced to surrender and spent three years as a hostage in Wu with his wife and ministers. After returning to his country, Goujian slept on firewood and tasted bile, vowing to wash away this great humiliation. He then adopted the "beauty strategy" proposed by Wen Zhong. After much searching, he finally found "Xi Shi, a wood-selling girl from Zhu Luo Mountain." Xi Shi, whose family name is Shi and given name is Yi Guang, had the beauty known as "sinking fish". It was said that when Xi Shi was washing silk by the stream, the fish in the water were attracted by her beauty and became so fascinated that they forgot how to swim and sank to the bottom. Therefore, later generations used "sinking fish" to describe a woman's beauty. Among the four phrases "sinking fish", "falling wild goose", "shutting moon", and "shaming flower", "sinking fish" comes first. Among the four beauties with the national color and fragrance, Xi Shi ranks first. As Xi Shi was trained in washing silk from a young age, she is commonly known as the "washing silk girl".