Gudako is the fan nickname for the female default protagonist of Fate/Grand Order, the mobile game and anime-adjacent Fate series. She represents the player’s avatar and serves as the Master of Chaldea, a special organization tasked with protecting human history. Though often portrayed as ordinary and comedic, she becomes central to the story through her determination, adaptability, and bonds with Servants. Her role is to lead quests across different eras, resolve singularities, and support the fight to restore humanity’s future.