One morning, Jenny, a sea-gypsy girl, finds herself covered in hair that makes her look like a chimp. This bizarre change is the side effect of the defective genes. Although those genes give her physical strength, they are a ticking clock of her death. They will shut down when the 12-year span of her age runs out. Her scientist mother, whom Jenny has never met when growing up, promises an antidote. But Jenny has to find her first. This story depicts how Jenny goes through a heroic journey to find her mother in the face of her potential death.