Sangakure

Sangakure (酸隠れの里, Sangakure no Sato, Literally meaning: Village Hidden by Acid) is the hidden village of the Land of Sulphur. Despite not being a village as strong as the Five Great Shinobi Countries, the village appoints a Kage, referred to as the Sankage, with three in the village's history.

The majority of acid shinobi are able to use Acid Release techniques.

Founding
The village was founded by Tsuashi Hamaro and his clan, who were exiled from the Land of Water after their strange powers of Acid Release were known and the subsequent suspicion that they may attempt to take over or obliterate the village of Kirigakure, along with the fallout of the Second Shinobi World War. Despite being exiled, the clan had no intentions of taking their revenge, and settled to build their own village, dubbed Sangakure, the Village Hidden by Acid. Soon after, Tsuashi was appointed as the first Sankage of the village.

First Contact
By the time Sangakure was discovered by Konohagakure (Hidden Leaf Village), it was a quarter of the size the hidden leaf village before the Fourth Shinobi World War. Because of the remaining bad blood between the Hamaro clan and Kirigakure, the Hokage at the time decided to not share the presence of Sangakure to Kirigakure.

Sangakure Incursion
By the time the war started, the first Sankage passed away by an unknown illness, and after that, the Mizukage found out about Sangakure. Being one of the few who greatly opposed the Hamaro clan, he sent an invasion force against the Village Hidden in Acid. The second Sankage, Atani Neiyuchi was soon appointed, and with knowledge of the war, ordered for preparations for possible attacks.

The decision was the difference between survival and obliteration. The Mist Village Invasion Force soon arrived, and despite the massive casualties including Atani, the second Sankage, the Acid Shinobi was able to fend off the invasion.

Relocation
In fear of a subsequent invasion, the Acid Shinobi relocated to a mountain range. Using potent acid techniques, they broke down rock in the mountains, making artificial caves stable enough to harbor a village. As protection, several rivers carved to be used as acidic moats filled with specialized acid that can break down human flesh easily, but takes decades to dissolve rock. Soon, the third Sankage was chosen, Tsuashi Hamaro's son, Yuri Hamaro. He was the most cooperative Sankage, assisting his people in the construction of the village even after their economy was starting to return to normal.

From this point, Sangakure took part in minor skirmishes with other villages besides the Five Great ones.

Clans

 * Hamaro Clan
 * Neiyuchi Clan