"River Where the Moon Rises" is a 2021 South Korean television series based on the 2010 novel "Princess Pyeonggang" by Choi Sagyu. The story centers on Princess Pyeong Gang, who was born a princess but raised as a soldier in the ancient kingdom of Goguryeo. Ambitious and clever, she dreams of becoming the first Empress of Goguryeo. Her plans are complicated when she meets On Dal, a peace-loving man with whom she falls in love. The series explores their relationship amid political struggles and battles for the throne
. The show aired on KBS2 from February 15 to April 20, 2021, and consists of 20 episodes. It is a historical romance drama directed by Yoon Sang Ho and written by Han Ji-hoon
