How to survive as a maid in a horror game - Vol 1 (Manhwa - Original Korean version)

Volume 1 of the manhwa How to Survive as a Maid in a Horror Game (공포게임 메이드로 살아남기).

The story centers on two characters: Adrian, a young nobleman who, despite his friendly appearance, is the reincarnation of the devil and a ruthless killer who murders indiscriminately; and Hilda, one of the maids at Adrian’s mansion, into whose body the protagonist of the book she was reading has been reincarnated—a book in which she suddenly found herself playing the video game.

The manhwa’s main themes are psychological horror, fantasy, and reincarnation into another universe, or “isekai.”