







素不相识 is a Chinese idiom (chengyu) meaning “to be complete strangers”. To have never met or known each other before. Literally, “never known each other”.
During the Three Kingdoms period, Lu Mao, the younger brother of Lu Xun from the State of Wu, was known for his generous nature and kind heart.
Xu Hou, a man from the same prefecture, was equally upright.
Although Xu Hou and Lu Mao were complete strangers, Xu Hou greatly admired Lu Mao's character.
On his deathbed, Xu Hou left a will entrusting his children to Lu Mao.
Lu Mao treated them as if they were his own flesh and blood, ensuring they received a good education.