Ivy was raised by the Valentines, a noble family in London, England. Ivy's father became obsessed with the cursed sword Soul Edge, and worked himself to death. Her mother died shortly afterward, and revealed to Ivy that she was not their biological daughter. Becoming an alchemist, Ivy learned of her father's obsession and decided to destroy Soul Edge. She created an animated, segmented sword, bringing it to life by unknowingly summoning Soul Edge's current host, Nightmare, and was convinced to become one of his servants without realizing he wielded the blade she sought. After learning the truth, and that her real father was the sword's previous host Cervantes and her to be its next, she decided that Soul Edge must be destroyed.