Character

Hassan of the Hundred Faces

百貌のハサン

Assassin is the Assassin-class Servant of Kirei Kotomine in the Fourth Holy Grail War of Fate/Zero, and one of the Servants able to be summoned by Ritsuka Fujimaru of the Grand Order conflicts of Fate/Grand Order. They are unique in that they have the capability to manifest as multiple entities at once. Each of the Assassins has their own personality, and their experiences are not shared between them. The female Assassin is shown to be the main one to interact with Kirei. Assassin's goal in wanting to obtain the Grail is "to have a perfect and unified personality."