The Ōkamigakure Archive Library (狼隠れ古書所, Ōkamigakure Toshodokoro, Literally meaning: Wolf Ancient Book Place) is a labyrinth-like construction situated under both the Village Head Office and the Village Head Residence. It is a place where all the secret of the village concerning its leaders, clans, secret techniques and so on and so forth are stored. The library also includes a room where the ancient weapons of the Uchimoto Clan are kept safe; this part is known as the village treasury. Because of the underground location, the place is highly secured from intruders; the only ones that have access here are the village chief and the ones appointed by he or she. The only way to enter the library is by using two different keys (which are kept by the leader of the village) simultaneously, which