The famous oath sworn by [[刘备|劉備|liu2 bei4]], [[关羽|關羽|guan1 yu3]], and [[张飞|張飛|zhang1 fei1]] in a peach garden at the beginning of the classic novel [[三国演义|三國演義|san1 guo2 yan3 yi4]]; it describes people who are not blood relatives becoming sworn brothers

The story of Liu Bei, Guan Yu, and Zhang Fei becoming sworn brothers in a peach garden in [[三国演义|三國演義|san1 guo2 yan3 yi4]]