The Saiguden (祭具殿 Ritual Equipment Temple?) is a tool shed located behind the Furude Shrine in Hinamizawa. The shed houses a number of torture implements from Hinamizawa's past. The shed is strictly off limits to most villagers and it is said that entering the shed uninvited will incur the wrath of Oyashiro.
- Rika Furude, one of the few allowed in the shed, eventually asked to have the lock on the shed changed to a simpler lock as the original one was difficult for her to open.