Falling Towards Cause and Effect

After a murder, the exorcist Ji Xia killed Li Jian who turned into a spirit. According to the iron rule in the industry, I should have withdrawn immediately and let go of the past. But he was born with difficulty in sensing emotions, but he was hindered by the regret of being so close to his homeland that he would never be able to return. Everyone in the world avoids being entangled in cause and effect, but he is the only one who is willing to pick up the regrets of being abandoned by the world, and step by step towards an ending that no one expected.