On Halloween night, everyone dresses up in scary costumes. But Lina, a high school girl, has a secret. She is a real witch. On Halloween, she becomes a real witch with her little black cat, Lulu. People think her witch costume is just for fun, but it's real. Lina likes to play small magic tricks on people. They just think it's because of the Halloween spirit. Lulu asks, "Do you like Halloween, Lina?" Lina smiles and says, "Yes, Lulu. It's the only day I can show my real magic to everyone!"