“Why belong to a monarchy when you can belong to a family..?

Hwang Hyunjin is the crown prince of his kingdom, about to be king. Unlike his father, who is a tyrant, Hyunjin is a revolutionary who wants equality and freedom for all. However, in an effort to make the current king stop his ways, the Stray Kids gang kidnaps Hyunjin, the king’s son, for ransom. His father refuses to pay it, because he hates his son’s ideologies anyways. What happens?