Tsukihime

A visual novel written by Kinoko Nasu, known for his other works like Fate/stay night. It tells the story of Shiki Tohno, a high schooler who uses the Mystic Eyes of Death Perception to fight vampires. The first 2 routes (the Near Side) mainly focus on action and worldbuilding, while the last 3 routes (the Far Side) focus more on mystery and psychological horror. A remake for the visual novel was released in 2021.