Mark of the Ninja PC Game

A ninja of the Hisomu clan is awakened by an emergency bell followed by a fellow female companion. They learn that the clan village is under attack by an organization called Hessian Services, who have sent a mercenary team headed by Corporal Kelly. Shortly after being rescued, Azai, the ninja leader reveals that the attack on the village was orchestrated by Count Karajan, who runs Hessian Services and is seeking to retrieve a stolen item from the Hissomu Clan. Azai then reveals the player to be the current champion of the Hisomu clan.

The champion is a member of the Hisomu clan that is tattooed using a sacred ink. It was discovered before "The Restoration," an event that restored the clan although few details are given to specifics, by a merchant who informed the Hisomu about a rare plant that contains a special ink that is said to give the user great power, at the cost of his sanity. The champion, therefore, must always be a student and is expected to sacrifice their own life before the madness sets in, in order to protect the clan and it's secret. The act of creating a champion is both a great honour to the recipient, but it is also a final option.