Hakuri is the error that ends the firm. Isou is burial-force. The Storehouse is two centuries of auction compressed into a subspace, then into him when he stops scattering his own spirit energy. Dual inheritance is historically almost unique in the Sazanami. Volume 4 titles the relationship Equal. The house never granted it. Chihiro did.
Kyora used the Kura as civilization and inventory. Hakuri’s version leaves the building: blades across the country, a Vessel lifted out of a government wall, Tobimune returned through a marker mandala. Registration is still a person and their charged objects. The owner changed. Chapter 32 titled Wall in the same volume as that waking. The architecture was always the plot.
Brothers, not a fifth Tou
Soya, Tamaki, Enji, Tenri are the household military. Hakuri is not a fifth. Tenri dies on a half-stable Datenseki stone trying to impress Kyora. Soya’s extra wants memories gone. Samura erased himself from Iori for a reason that was almost love. Two erasures in one book. Only one of them is trying to keep a daughter out of a ledger. Hakuri’s inheritance is the other motion: keep the room and walk it out of the clan.
Kudo spends Warrior’s Path so that walk continues. Official chapters: VIZ / MANGA Plus. Related: Hakuri, Storehouse, Isou.