In 1718, sixteen-year-old Y/N, a reckless young siren, attempts to lure a pirate crew to their deaths using her enchanting song. Her plan works perfectly until she discovers one major problem: women are completely immune to siren magic. After being spotted and captured by a female pirate captain, Y/N expects to be killed. Instead, she’s imprisoned aboard the ship in a massive seawater tank. Six months later, Y/N is still stuck with the very pirates she once tried to eat. While the crew argues over whether she’s a monster, a prisoner, or a crewmate, Y/N finds herself slowly becoming attached to the strange humans she swears she hates. Unfortunately for everyone involved, life at sea is dangerous enough without adding a stubborn, man-eating siren to the crew.