Abu and Heizai are messengers from the underworld, specializing in the balance of the six realms. However, Abu is kind-hearted and will always be taken advantage of and make wrong judgments.
In order to allow Abu to truly grow up, Hei Zai has been teaching Abu how to be ruthless.
But this is too difficult for Abu. Whenever he encounters a dead soul who has a grievance, he can't help but meddle in his own business. In the end, either he himself is punished, or Hei Zai is punished together with him.
Fortunately, with the help of Po Meng, A Bu and Hei Zai did not get into trouble.
One day.
Abu and Hei Zai discovered that there was an evil force in the underworld, and they realized that this evil force had disturbed the balance between Yin and Yang. Everyone was trying to persuade Abu not to meddle in his own business, but Abu still couldn't change his original intention.
Along with the step-by-step investigation, Abu came to the dangerous situation deep in the Eye of Hell. At the critical moment, it was Hei Zai who still risked his life to save him.
