La Signora, also known as her real name Rosalyne-Kruzchka Lohefalter and by her codename "The Fair Lady," is the Eighth of the Eleven Fatui Harbingers from the game Genshin Impact.

La Signora is a tall woman with pale skin, platinum-blonde hair, and light gray eyes. Some of her hair is tied into two rose-shaped buns at the back of her head. She wears a black earring on her left ear and a black mask that covers her right eye. She is seen with what appears to be a Catalyst hovering behind her right shoulder.

La Signora is cold in her demeanor and appears haughty at first glance, but is extremely loyal to her ideals. She is tough, beautiful and calculating. She doesn't like to stray from her missions and is extremely loyal to the Fatui and to her archon, the Tsaritsa.

La Signora/Rosalyne is one of the Fatui from the game Genshin Impact. She is the first Harbinger to appear in the game when she ambushes and overpowers Venti to steal his Gnosis. Her attack leaves a lasting impression on the Traveler, who greatly distrusts the Fatui and their intentions after witnessing said event.

Five hundred years ago, before she became a Harbinger, Rosalyne was an ordinary young woman from Mondstadt who studied at Sumeru Akademiya. When her lover Rostam died during the cataclysm, Rosalyne was consumed by anguish and hatred and used the art of liquid fire to transform her body into that of living flame, thereafter becoming known as the Crimson Witch of Flame. Before she could be fully devoured by her own flames, Pierro found her and decided to make her an ally. She was given a Cryo Delusion to suppress her flames and became known as La Signora, the Eighth of the Eleven Fatui Harbingers. In the process, she willingly cast aside and forgot her past, possibly with the help of her Delusion.

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