Lin You, a freshly released juvenile offender with an unusually strong fate, stumbles into the "Daji Agency" and lands a job as a haunted-house tester. Teaming up with Xu Liuliu, a girl with special heterochromatic eyes, they unravel one mystery after another. Each "ghostly" case hides a shocking human twist beneath the surface. Through their comics, they help lingering souls find peace or break their own inner demons, walking the line between yin and yang to achieve their own redemption.