After death, the soul is assassinated and sold at a high price. In the bustling city, in the bustling world, around you and me, there is a mysterious organization. The people in this organization call themselves soul hunters, and their profession is to assassinate souls. The salary is extremely high, there is no 996, and there is no performance appraisal. No matter day or night, rain or shine, the soul hunters keep assassinating souls all the time, and the reason is not for money! Why is all this happening? What is the truth behind the assassination of each soul?