Why open the Japanese node in a bathhouse? Denkiyu is a sentō — a traditional public bathhouse — in Tokyo's Kyojima neighbourhood, and a place that makes something visible: that collaboration is not only active and organised, but also a quiet, reciprocal form of care that holds people together almost without ever being named. Starting from here, the session brings Katsuhito Okubo, who runs Denkiyu, into conversation with scholars of the commons to reflect on the specifically Japanese sense of collaboration and commoning — and on the role cultural institutions can play in relation to it: whether they can help preserve it, let it grow, or set it in motion, without imposing and without deciding in its place.