Wu Zixu lived during China's Spring and Autumn period (7th-5th centuries BCE), a time of warring states and political intrigue. His father and brother were executed by the King of Chu after being falsely accused of treason. Wu fled for his life, spending years as a fugitive before eventually reaching the rival state of Wu.
The story centers on his desperate escape across a river, where a humble fisherman risked everything to help him cross safely. When Wu offered his precious sword in payment, the fisherman refused, saying true friendship couldn't be bought. This fisherman later killed himself to protect Wu's identity, embodying the Chinese ideal of righteousness over personal gain.
Wu eventually became a powerful minister who helped Wu defeat Chu, fulfilling his revenge. The tale represents how unexpected kindness from ordinary people can change the course of history.