The Crown Prince, Killing

Mojebi, a palace maid, was enjoying a peaceful life serving Nam Moran, the Crown Prince's chambermaid. Then one day, Nam Moran's whereabouts become unknown after she moves. Anxious, Mojebi sneaks into the Crown Prince's chambers to inquire about Moran's whereabouts, but there she uncovers an unexpected secret. Faced with the horrifying truth hidden within the Crown Prince's chambers, Mojebi struggles to survive in the treacherous palace, paralyzed by the horrific truth. Yet, she cannot turn a blind eye to the court ladies who fell victim to the Crown Prince's secrets. For she sees their spirits in her eyes.

(Source: Kakaopage, translated)