Read it official: VIZ or MANGA Plus. Chapter 32 sits in Volume 4, Equal, between “Mr. Inazuma” and chapter 37’s title. The English word is Wall. The Japanese is 壁. The auction house has been architecture since chapter 23 titled the Storehouse.
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Hakuri awakens Isou and Storehouse in this volume. The discarded son was scattering his own spirit energy; when he chooses Chihiro, the architecture answers. A wall in a Sazanami building is never only masonry. It is inventory, bloodline, and a subspace that thinks people are stock. This room does not invent a unique panel. It files the title next to the Storehouse and the equal relationship the clan refused to grant.
File: Storehouse, Hakuri, chapter 23, Equal.