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As the deadliest assassin in the Seong Empire, Yeseo rarely encounters tasks that leave her stumped. However, when Emperor Ahon commissions her to uncover a spy within his palace, she must also assume the role of his new airheaded concubine as a cover. It requires all her patience to maintain her affectionate act with Ahon during the day, and all her intelligence to track down the enemy at night.
If only she could finish this job swiftly and claim her generous reward—but with numerous suspicious officials and the intricate web of alliances within the court, identifying the true culprit becomes increasingly complex. Can Yeseo catch this elusive spy before she loses her sanity and compromises her own cover?
Original Novel
Original Webtoon: Kakaopage, Daum
Official Translations: English, Simplified Chinese, Japanese, Thai, Traditional Chinese, Indonesian, French