Seoul, ravaged by the Beast Disease—a disaster that turns humans into beasts. There lives Lire, an exceptionally perceptive boy who single-handedly cares for his sick younger sibling. One day, a mysterious incident occurs at the hospital. Trying to protect his only family, Lire awakens once again at the boundary between human and beast. “I promise—I will definitely get you back.” “Even if I have to become a beast.”
