Hugung Gyeyag
The Concubine Contract·후궁계약
Yeseo is a top assassin in the Seong Empire, rarely challenged by her assignments. When Emperor Ahon hires her to uncover a spy within his palace, she is tasked with pretending to be his naive concubine. By day, she must maintain a flirtatious facade with Ahon, and by night, she uses her skills to investigate the palace's secrets. The mission is complicated by numerous officials and shifting loyalties in the court, making it difficult to identify the real spy. Yeseo must solve the case before her cover is exposed or her mental state deteriorates.