Young-gu dreams of a mysterious mummy and then meets Mira, a new classmate whose lunchtime disappearances coincide with students vanishing. He and his friends uncover a sinister trio, consisting of Mira the mummy, Dracula, and a hunchback, plotting to destroy graves and abduct villagers. When his mother is kidnapped and the villains trap everyone with their crystalline magic, Young-gu escapes, rallies his friends to fight, and at dawn’s sunlight the supernatural threat is finally banished.