Sanso
After the raid, surviving wartime bearers are locked in Sanso. Uruha is moved. Hiruhiko hits the box. Steam Squad dies on the way to a train that does not hold. Subaru is relocated when the pattern is obvious. Samura is at a temple, which is only a prettier box until Suzaku spends it as surgery.
The basement
Magatsumi in the HQ basement is the state’s masterpiece box. Yukisada is a person seated so a barrier can be steered. Yura offers a body. The Sword Master leaves. Kasen’s leak already proved the workshop was a box with a mailing address.
The walking exception
The Storehouse is a subspace that held loot and people. Hakuri inherits it and walks. The only box that works in the long book is the one that refuses to stay architecture. See Sanso, HQ, and Storehouse.
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