La Signora

La Signora, whose real name is Rosalyne-Kruzchka Lohefalter, was once a maiden from Mondstadt. She fell in love with Rostam of the Knights of Favonius and received a hydro-timepiece from him before departing for Sumeru Academia to study pyro magic. During her absence, Rostam died in the cataclysm of Khaenri'ah. Consumed by grief and rage, Rosalyne transformed herself into the 'Crimson Witch of Flames' to avenge her lover, slaying monsters and disfiguring her own body with fire. Later, she was found by Pierro of the Fatui and granted a Cryo Delusion, becoming the Eighth of the Eleven Fatui Harbingers, 'La Signora'. She is ruthless and cunning, willing to do anything to achieve her goals. Throughout the game, she steals Venti's Gnosis and plays a key role in the events of Liyue and Inazuma. Ultimately, she is defeated and killed by the Raiden Shogun in Inazuma, bringing a tragic end to her life. She is not merely a villain, her actions driven by deep sorrow and a thirst for vengeance.