In a breathtaking underwater kingdom, a forbidden love blooms amidst the chaos of an age-old rivalry. Maren, a beautiful mermaid princess with a heart as boundless as the ocean, finds herself drawn to Levi, a brave young prince of the Octman clan. But their love is tested as their clans, sworn enemies for centuries, wage a relentless war that threatens not only their own existence but also the fragile peace of the surface world.
Unbeknownst to the oblivious humans, who believe mermaids and octomaidens to be creatures of mere folklore, the ongoing war beneath the waves has manifested in unexplainable natural catastrophes. Hurricanes whip across coastlines with unparalleled force, and towering tsunamis crash upon unsuspecting cities. The hidden truth is that these apocalyptic events are caused by the immense powers wielded by the mermaids and octomaids, their fury unleashed in a desperate struggle to protect their respective territories.
But when Maren and Levi accidentally discover a long-forgotten prophecy buried deep within the ancient texts, they learn that their forbidden love holds the key to restoring balance and mending the fragile bridge between their peoples. If they can overcome their ingrained prejudices and join forces, their union could bring an end to the catastrophic storms wreaking havoc on the surface world.
Guided by their shared love for each other and the desire for peace, Maren and Levi secretly meet, braving the dangerous depths and defying their clans' expectations.
As their love blossoms against the odds, Maren and Levi inspire hope in their divided kingdoms. With every stolen moment and secret plan, they forge a bond that transcends the hatred and conflict of generations past. Will they be able to reconcile their feuding clans and bring an end to the catastrophic storms raging above? Or will their love be crushed under the weight of history and the insurmountable odds stacked against them?
In the epic conclusion to the Devil's Deal series, Freya has one final chance to discover the full potential of her own power, and to use it to restore balance in the universe - once and for all. After the destruction caused by Roisin, Ferya and Torix come to terms with their losses and mistakes... And prepare for a final battle that will change everything.