In order to suppress the backlash, the former Tiandao judge became a mourner in Chang'an, specializing in collecting the most painful memories of the dead. The only musician who can comfort him takes the initiative to get close to him, lures him into solving the case, and gives him the warmth of the world. It wasn't until the soul exchange in the illusion that he discovered that all his dependence and love were precisely raised by the other party in order to cultivate him into the most perfect 'sacrifice' to purify the world.
