Jigoku Kurayami Hana mo Naki

A man named Seiji Tohno perceives people around him as monstrous figures, a condition that has led him into despair. His life shifts when he encounters a strikingly handsome boy named Shiroshi Saljou inside a large European mansion. Seiji agrees to work as Shiroshi’s part-time assistant. Shiroshi offers a service involving the condemnation of individuals possessed by yokal to Hell, exposing Seiji to a vast array of terrifying entities.