So following the credits in the movie A Werewolf Boy, the scene where Joongki makes a snowman, and after Suni leaves; Joongki (Cheolsu) discovers a girl who was knocked out on the snow-filled ground with face flat on the floor. He decides to take her in and treat her like Suni had with him. Because the boy does not age, he stays the same as he had years before. The unconscious girl seemed normal to him. So is she really a human or a mutant like him?