Gamuran

Gamuran is the main antagonist of the video game, Shinobido: Way of the Ninja. He was an evil sorcerer who was an ancient enemy of the Asuka Ninja, a group of ninjas who was dedicated to protect Utakata. He also wanted to obtain the secrets of the necromancy and fought for the scroll for obtaining that powers. However, he was eventually defeated and imprisoned in the shrine for about 900 years.

However, he was accidently freed by Goh, one of the Asuka Ninja and proceed to manipulate the Taraba Ninja to destroy the Asuka Village in the fateful night before the events of the game, leaving Goh, Zaji and Kinu as the sole survivors.

Past
900 years before the main events of the game, Gamuran was a sorcerer who was obssessed of finding the scroll which contained the secrets of the necromancy for his greedy goal but was eventually defeated by the Asuka Ninja and sealed him inside the shrine in the Asuka Village.

Shinobido: Way of the Ninja
Sometimes before the start of the game, the shrine that sealed Gamuran, was unwittingly opened by the curious Goh and the reluctant Kinu.