Upon losing his memory, a crown prince encounters a commoner's life and experiences unforgettable love as the husband to Joseon's oldest bachelorette.

Seo Hwi is a warrior. His father Seo Geom is a famous commander. Seo Hwi does not compromise when it comes to injustice. His life devolves into a hellish existence, but he still holds a smile. Nam Sun Ho is smart and a talented figure. Because his mother was born into the lowest class, Nam Sun Ho is looked down upon by other people. He wants to pass the military service examination. Due to a corruption scandal involving his father, Nam Sun Ho loses his dream. Making things worse, he comes into conflict with Seo Hwi over a misunderstanding.

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