Four-Character Idiom · People & Bonds · Kyojuro Rengoku
Meaning
To regard all people with one and the same benevolence, drawing no distinction by rank, background, or relation.
相手の身分や出自に差をつけず、すべての人を平等に愛し待遇すること。
The Kyojuro Rengoku line
Verbatim from the source article
「俺の継子になるといい面倒を見てやろう！」
"YOU SHOULD BE MY TSUGUKO, MY DISCIPLE. I'LL LOOK AFTER YOU!"
Why it fits Kyojuro Rengoku
Rengoku offers tsuguko-ship to Tanjiro on first acquaintance, knowing nothing of his lineage or rank within the Corps. The offer is isshi-dōjin in action — care without prior qualification, a Hashira treating an ordinary recruit as his equal in possibility.
Cultural note
Origin in classical / Buddhist / Confucian tradition
From the Tang poet Han Yu (韓愈), an essay on universal benevolence — adopted into Japanese moral vocabulary by the Edo period.
Sources
- デジタル大辞泉 — 一視同仁 (dictionary)
- 精選版 日本国語大辞典 — 一視同仁 (dictionary)