Fou

Serving as the adorable mascot of the Chaldea Security Organization, this squirrel-like creature plays a vital role throughout the Fate/Grand Order journey. Initially encountered by Fujimaru alongside Mash Kyrielight, the small companion wanders freely through the base and provides much-needed charm during intense missions. As a loyal ally, it accompanies the protagonists through various dangerous Singularities, acting as a steadfast, cute presence amidst the chaos of their temporal travels.