As a Korean sleeper cell broker, Ryu-han infiltrates that the South and assumes the use of a village fool in a rural town. He waits patiently for his assignment and sees the townsfolk. 1 day, after 2 decades of playing the use of the village fool, fellow elite spies Hae-rang, introduced as Hae-jin, introduced as an ordinary student and a rock star, are discharged to the town as Ryu-han. He helps both spies settle in and teach them how to correct from the South. A sudden political power shift is from the North and three spies receive an ultimate and urgent assignment.