the citadel.

[jyoshu]

 
A large dojo-esque building from Touken Ranbu that is complete with a kitchen, recreational rooms, sparring area inside, and a number of dorm rooms that can house from 2-5 people or sword spirits (or monsters, in this case). Hopefully nobody is allergic or superstitious either, because thanks to Yamato and Kogitsune, a number of black cats are wandering around the grounds.
 

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Confirmed rooms:

Room 1	Room 2	Room 3	Room 4	Room 5
Horikawa Yamato	Mikleo Sorey Yamanbagiri	Kogitsune	Kosetsu	Izuminokami Tsurumaru
Room 6	Room 7	Room 8	Room 9	Room 10
Chise	Empty	Empty	Empty	Empty

Because the maximum amount of swords (currently) allowable in a Saniwa's inventory is 50, the citadel as brought to Ryslig has approximately 10-12 rooms of space.