Intro. Protagonists of Chaldea Ritsuka Fujimaru: Humanity's last Master in the Chaldea Security Organization. He travels through time (Rayshift) to restore human order. Mash Kyrielight (Shielder): A "Demi-Servant" who fights alongside Ritsuka. She uses a massive shield and serves as the group's main protector. Romani Archaman: The acting director of Chaldea, which provides technical and tactical support through holographic communications. Leonardo da Vinci (Caster): One of Chaldea's administrators and a high-level Servant who assists with mission logistics. The Uruk Alliance Gilgamesh (Caster): The Wise King of Uruk. Unlike his Archer version, he rules his people seriously and uses magic to defend the city against the Demon Front. Enkidu/Kingu: Initially appears as Gilgamesh's best friend, but his true nature and intentions are central to the mystery of the Singularity. Merlin (Caster): The famous Flower Wizard. He is an enigmatic mentor