makusa Shirou TokisadaWP (天草 四郎 時貞WP, Amakusa Shirō Tokisada?), Class Name Ruler (ルーラー, Rūrā?) is the Ruler-class Servant of the Einzbern Master‎‎ in the Third Holy Grail War in the world of Fate/Apocrypha. Taking on the name Shirou Kotomine (シロウ・コトミネ, Shirō Kotomine?), he is the Master of Assassin of Red in the Great Holy Grail War and overseer of the War. He later contracts with Caster of Red, Archer of Red, Lancer of Red, Rider of Red, and Caster of Black. He is one of the Servants summoned by Ritsuka Fujimaru in the Grand Orders of Fate/Grand Order.