Siduri Enkidu is a supporting character in Fate/Grand Order, appearing prominently in the Babylonia singularity. She serves as the loyal and diligent assistant to King Gilgamesh in Uruk, managing administrative duties and acting as a liaison between the king and his people. Siduri is known for her gentle personality, deep devotion to Gilgamesh, and unwavering commitment to the safety and prosperity of Uruk. Her character adds emotional depth and humanity to the story, making her a beloved figure among fans.