River Where the Moon Rises - Goguryeo

The series retells the love story between Princess Pyeonggang and On Dal, characters from a classic Goguryeo folktale.

Princess Pyeonggang (Kim So-hyun) was born as a princess but raised as an assassin. Upon learning the truth of her origins, she fights to win back her country and rightful throne from the corruption that has taken over.

A peace-loving man, On Dal (Na In-woo) is the exact opposite of the warrior princess. But as the two fall for each other, On Dal finds himself forsaking his principles in order to keep her safe. An endeavor that proves increasingly difficult, as players from all sides converge in a lethal battle for the throne.