殺戮の天使 [Satsuriku no Tenshi]

A psychological horror manga serialized by Kadokawa from 2016 to 2020, Satsuriku no Tenshi adapts the acclaimed indie RPG of the same name into a twelve-issue comic. The story follows Rachel, a young girl trapped in a twisted building where she forms a deadly pact with a serial killer named Zack, both seeking escape through murder. Written and illustrated by the game's creator, Kudan Naduka, this series is a faithful, chilling expansion of its source material, known for its claustrophobic atmosphere and the darkly compelling bond between its two protagonists. It stands as a definitive text for fans of the game and a gripping entry point for newcomers to survival horror manga.