Shinobido: Way of the Ninja

The story takes place in the Japanese province of Utakata in the 16th century. You take on the role of the ninja Goh, the sole survivor of the Azuka Clan, who finds himself unconsciously lying near a river having completely lost his memory. After finding a magical stone containing tiny fragments of the events that took place before his awakening, he decides that the only way to find out more about his past is to localize the remaining stones.