Secretly, Greatly: Slumber

[Original Webtoon](https://webtoon.kakao.com/content/%EC%9D%80%EB%B0%80%ED%95%98%EA%B2%8C-%EC%9C%84%EB%8C%80%ED%95%98%EA%B2%8C-%EC%8A%AC%EB%9F%BC%EB%B2%84/934)

• Format: MANGA
• Genres: Action, Comedy, Drama, Mature, Psychological, Seinen

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