A Harpy is a winged humanoid creature. Under the order of Queen Harpy, the harpies kidnap male humans from Happiness Village to mate in order to preserve their race
In Chapter 1, upon Luka’s arrival at Happiness Village, she attempts to kidnap the last male of the village, a young boy, until Luka intervenes in which she takes interest in him instead. She fights in the air, making it difficult for Luka to combat her until she pins him down; because she is not holding down his arms, he easily strikes her. Eventually, she flees.
After Luka resolves the issue between the humans and harpies, the same harpy is stationed at Happiness Village trying to mate, much to the annoyance of the female humans.
In Chapter 3, when Happiness Village is under attack from Ilias's forces, she tries to rescue a boy from Chimera Prison but nearly falls prey to Chimera Medullahan, however Luka rushes in and saves her from Chimera Medullahan. After he defeats Chimera Medullahan, Queen Harpy defeats Chimera Prison.
After the battle, Luka can talk to her, where she thanks him for saving her and tries to entice him into mating with her.
