A dangerous witch has escaped the ocean, slipping into the human world where she hides in plain sight, growing stronger and more ruthless each passing day. No ones know where she is or when she might strike.
Born beneath the wave, Corelia, a young mermaid, never imagined her destiny would lead her into the human world. Yet the ocean chooses her for a mission only she can complete, she is forced to leave everything she knowns behind.
With her loyal best friend by her side, Mishell, the two mermaids steps into the human world armed with nothing but a mysterious necklace, a Death Shell and a mission that feels high but far more complicated than they expected.
The human world isn't just unfamilar but overwhelming, secrets lurks in the dark corners, past that refuses to be buried, enemies behind friendly smiles and emotions they were never prepared for clouded their judgement. In the middle of this search, they find themselves tangled in college life... Crossing path with Q4, a popular K-pop Boyband whose presence brings unexpected distractions, dangerous attentions and feelings neither of them were prepared for.
As their powers began to change and evil forces close in, Corelia and Mishell realized that capturing the witch might not be as simple as they thought.
With no clear clues, no idea where to begin and hearts slowly entangled in a world they were never meant to belong, the mission became a race against time.
Love and Danger collide. Trust is tested and the line between destiny and choices became blur. With everything at risk, the witch still hides in the shadows.
Will they be strong enough to complete their mission or will the human world consume them even before they find where to start?