Ten years ago, on a stormy night, Layla, the sole heir of the Aurelius family, gave birth to a divine pure-blood infant. Her husband Felix, taking advantage of her postpartum coma, conspired with the maidservant Cassie to swap the baby—placing his own illegitimate child by the servant into Layla's arms, slapping a "slave seal" on the true heir, and locking him in a cellar as a living "blood bag." For ten years, Layla poured all her magic into raising the fake son, while her own flesh and blood suffered inhuman abuse. On the day of the Bloodstone Ritual, the true heir, Leo, broke his wrist to free himself from chains and staggered bloodied into the hall. Layla shattered the slave seal with her own hands, and the divine pure blood awakened—ancestral spirits appeared, and the truth was fully revealed. Layla punished all the guilty parties with swift and decisive force. Three years later, demons invaded. Mother and son joined forces to turn the tide. Leo became the empire's savior and the true Duke of Aurelius.
