Zhang Ping'an, a social animal, was mistakenly lured to the underworld by a seductress. He was forced to sign a deed of betrayal and became an intern debt collector in the underworld. His partner is Baobao, the female ghost king of the Republic of China who has stayed in the earth for eighty years and has confused memory. One person, one ghost and one seducer start a debt collection journey across the Yin and Yang realms. Let the rich man who swallowed his brother's life-saving money repent bitterly, expose the shady foreman who faked his death to avoid debt, begged the city god's forgiveness for the Internet celebrity who made a wish for plastic surgery, resolved the centuries-old grudge of the ghost who was killed and died twice, and revealed the truth about the campus "bully"'s plan to kill the pig. But when Zhang Ping'an accumulated enough points, he discovered that Wang Baobao's death was actually related to his previous life.
