Shinkoshoku Kage no Kyuden

Just as Seven Stings Keep was a secondary facility for military training, the Palace of Crimson Shadows was a training facility for the Scorpion Clan’s courtiers and masterminds, constructed to handle the overflow of Kyuden Bayushi. It was located in the plains south of Kyuden Bayushi before the provinces give way to hillier lands.

Destroyer War
The invading forces of Kali-Ma attacked the Palace of Crimson Shadows during the Destroyer War. Many samurai were involved in its defence, among them Akodo Areru and Doji Yasuyo, as well as Toritaka Horoiso and Hida Harou. Eventually, the Palace of Crimson Shadow fell.