In this world, there are three realms: Heaven, Mortal Realm, and Netherworld. The story took place on the fourteenth day of the seventh month of the lunar calendar - the day when the gate of hell opened. The background of the story was between the passage of time in the Netherworld and the Mortal Realm.
This story was about the protagonist’s girlfriend who accidentally violated the taboo of the Netherworld and was arrested. While attempting to save his imprisoned girlfriend in the Netherworld, the protagonist and his girlfriend got attacked by Ox-Head and Horse-Face. During the rescue, they overcame the difficulties and ran to the formation in the hope of returning to the Mortal Realm. Sadly, they failed in the end.