The legendary practitioner of illusionary techniques (gejutsu and youjutsu). Their skills were so great they were rumored to be able to temporarily revive the dead. They seem to have been quite well-known, especially around the capital in Kyoto. While it is said they were a ninja, who they served and what manner of tasks they undertook in that capacity remain a mystery. ...Their left eye glints crimson, a mark of demonic power. (Source: Fate/Grand Order profile)