Sisters of Cynara's fox clan, Susan and Claire, share opposite fates. Susan becomes the nine-tailed empress, while Claire, three-tailed and envious, bears a daughter with Susan's husband. Desperate, Claire swaps her baby with Susan's daughter. But Susan sees through the ruse and plays along.Five centuries later, Claire plans to reveal the truth that shatters everything: they raised the other's daughter, one in cruelty, one in care.
