Unable to Cross the Three Realms

When hearts grow impure, their impurities gather and become demons. Demons are not born in the abyss. They form over the years from the fear, greed, grief, and resentment in mortal hearts. Shen Heng is skilled at reading people's thoughts and judging the world through reason; Su Wei excels at empathy and eases suffering with kindness. The two meet in Qingshi Town and glimpse an unsolvable deadlock. To survive, the demon clan plans to extract the impurities from human hearts, but the price is erasing the living will of those who are still alive. Shen Heng and Su Wei agree to try for three months to dispel the impurities in people's hearts. When their time is up, they set off on a long journey north. Along the way, they pass through town after town swallowed by the foul aura. They see seals left behind by generations of predecessors, layer upon layer of