Layla Harfoush is a four-star Cryo character in the game Genshin Impact. She is a student of the Rtawahist Darshan at Sumeru Akademiya, known for her chronic sleep deprivation and unique ability to write papers while sleepwalking. Despite her timid demeanor and self-doubt, Layla is talented in astrology, often surprising others with her deep knowledge. In the game's story, she provides support both academically and in battle, using her shield and starry abilities to protect her teammates.