I Was Slaying Gods in a Psychiatric Hospital is a novel blending fantasy, mystery, and thrilling battles. The protagonist, Lin Yu, is mistaken for a psychiatric patient and locked away in an asylum. There, he discovers a mysterious world hidden beneath everyday life, where shadowy figures keep appearing. While battling these shadows, he meets Su Ran, who also possesses special abilities. Misunderstood by the world, the two find themselves in what seems like a hopeless asylum. Relying on their own strength and convictions, they wage a desperate fight against the forces of darkness, gradually uncovering the shocking secrets hidden behind the hospital walls. Thus begins a battle to slay gods that spans reality and the unknown.