The haunted house has been doomed for seventy years, with humans and ghosts guarding each other. Using paper lanterns as a guide, the century-old curse was broken. The modern city hides countless forgotten places. Old cities, abandoned hospitals, deserted ancient houses, late-night buses, paper shops, funeral parlors... They are all at the intersection of yin and yang.
There are angry people in the world, and there are also resentments in dead things. Resentments gather to form evil spirits, which feed on the Yang Qi of living people.
