the five Confucian filial-piety relationships
Refers to the five fundamental human relationships in Confucian ethics: ruler–subject, parent–child, husband–wife, elder–younger sibling, and friend–friend. A classical term used in discussions of traditional morality.
In Confucianism, the five filial-piety relationships are emphasized.
From 五倫 (five relationships) + の + 道 (way, path). The term is rooted in classical Confucian texts.