Caligula

Caligula is a Berserker-class Servant featured in Fate/Grand Order (FGO). He is the third emperor of the ancient Roman Empire, known for his infamy as a tyrant. In the game, Caligula is portrayed as a tragic figure who descended into madness due to the influence of the moon goddess Diana (the Roman counterpart to Artemis). Despite his immense power and Mad Enhancement skill, he retains a deep love for Rome and his niece, Nero, which allows him to briefly regain his sanity. Caligula's Noble Phantasm, "Flucticulus Diana," is a mental pollution attack, but it is ineffective against those connected to Artemis. He longs to be freed from his madness and return to the time when he was revered as a wise ruler, sharing tender moments with Nero. He serves as both an enemy and a conflicted character in the story, his complexity and tragedy making him a memorable figure in FGO.