Lady Nerissa returns from a state visit abroad with her young daughter Cora, entrusting the Tide Signet — the key to the Royal Sky Garden — to her husband, Lord Leandros. Behind her back, however, Leandros has fallen for the scheming noblewoman Calista, handing her the signet and every privilege of the garden. Blinded by trust, Nerissa watches as Calista bullies her daughter, destroys the sacred Seven Seas Crown, and plots to make mother and child disappear. When the truth finally shatters her world, Nerissa awakens from a trusting wife into a relentless avenger. With the royal court at her side, she gathers irrefutable evidence and brings her treacherous husband, his arrogant mistress, and their accomplices to justice — reclaiming the Sky Garden and securing her daughter's rightful future.
