Ghosts come visiting to a deserted village. A child named Yong-gu approaches the deserted house where the ghosts are plotting away. The ghosts are afraid that their plans of conquering the human world may be compromised but breath easily when they realize that Yong-gu is a slow child. Thirsty for blood, the ghosts kill some people. Yong-gu suspects it is the ghosts' deed but no one believes him when he says so. Yong-gu goes to a Buddhist monk but the monk already knows about the ghosts. On a night with a full moon when Frankenstein is to be awakened, the monk, Yong-gu, and the children go to the deserted house. With the monk's powers, they are able to fight against the ghosts. But the monk falls to Dracula's attack. Dracula falls when he is hit by a rubber shoe thrown in haste…

Moon Chul, Hak-gyu, and Young-ok are students in the sixth year of the National School of Life and Guidance. They have excellent academic performance, but above all, they are children who have unrighteousness and have a lingering suspicion that they cannot endure. But sometimes it's a valiant three-gunner who turns around with a miscivous joke.

Young-gu feels that he usually feels inflamed by the excessive protection of his parents and wants to live alone. One day, he goes on a trip with his parents. Young-gu, who accidentally lost his parents on a trip, finds his wallet and money in his father's luggage, wanders around by himself, living an uncontrolled life of his parents, but realizes that his parents' nagging was for him, and he goes to his parents' side.

A bumbling but good-hearted hero, Hyung-rae, becomes entangled in a conspiracy involving foreign agents, corrupt officials, and rival martial artists during Korea’s historical era. After coming across an injured warrior who warns of Japanese spies, Hyung-rae finds himself caught between competing factions seeking power. As assassins, warriors, and schemers collide, Hyung-rae and his companions stumble through a series of comedic misadventures, ultimately becoming unlikely heroes in a chaotic battle of loyalty, deception, and martial arts spectacle.