Bleeding tale, bleeding heart

It starts with a drop of fresh blood...

Delilah is a stubborn woman who is trapped in the monotony of her routine. One night, while reading at her safe harbor, a timeless second-hand book store, her finger grazes the sharp edge of a leather-bound book and draws a droplet of blood.
To her surprise, a charming, yet exhausted man in tattered clothes materializes in front of her. His sudden appearance shoves Delilah into a sinister and depressing journey. Trapped in a world of malevolent darkness, Delilah feels an unexplainable affection toward the man. She knows, no matter what it takes, she has to help him escape the dark realm.