I Learned to Catch Ghosts in the Delivery System and Alarmed the Underworld

An unlucky delivery boy accidentally activated the ancestral Bagua Mirror pendant, which turned out to be his golden finger plug-in - a "ghost group" system directly connected to the underworld. While others run out to deliver food, drink and fun, he runs out to deliver good ghosts, evil ghosts and perverts; Others begged their grandfather and grandma to take the public examination, but he was forcibly included in the public service by the underworld... He not only had to complete ghost tasks every day, but also dealt with increasingly complex supernatural events. However, as he learned more and more about the ghost group system, Li Yinyang found himself involved in a big conspiracy about the secrets of the underworld...