Shim Hyung-rae and the Phantom Thief Lupin

Dr. Kojubu, a wizard, creates an abominable monster with the intention of ruling the world with evil and sends the monster into the world. By chance, the ghosts invade the country house where Young-gu lives, and then enter the body of the sleeping ones and manipulate them.

Sol-i and Song-i head to Hanyang with the blueprint for a cannon invented by their father. On the way, they meet Japanese pirates and get captured, but Baek Du-geon appears and defeats the pirates and saves Sol-i and Song-i. Sol-i and Song-i arrive in Hanyang and hand over the blueprint to Hong Cham-pan, and Baek Du-gun and the three insect musketeers cause a commotion. Hong Cham-pan, who was handed the blueprint, works with the snake demon and tries to sell the blueprint to a Japanese spy (Miyamoto). Based on the popular segment 'Drumbeat from the Border' from KBS's Humor No. 1 at the time.

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.