100 years ago, titans suddenly appeared on Earth. Soon, human civilization veered on collapse due to the titans. Humans then built a giant wall to defend themselves. Within the giant walls, humans lived in peace, but, 100 years later, the giant wall is broken.
In a construction site under the full moon, construction workers dig too deep and inadvertently wake up Joe (Alex Lam), a vampire that has been lying underground for a century. Dazzled by the vibrancy of a modern city at night, Joe wanders around and runs into Apple (J.