Katy is a free-spirited young woman who became close friends with Shang-Chi, who had fled to San Francisco after defecting from the Ten Rings. Despite their closeness, he never told her about his past. Years later, she learned the truth about her friend when Wenwu's forces began hunting him down. She managed to convince Shang to let her come with him to find his sister, Xialing, and remained by his side through the rest of his journey. During her time in the village of Ta Lo, she began practicing archery, ultimately using her acquired skills to weaken the Dweller in Darkness long enough for Shang to land a finishing blow against it.