Gu Han is the prison master of the eighteenth level of hell. Because he received help from the old owner of Naihe Internet Cafe, he secretly released the girl that the old bar owner liked. He was punished by King Yama and left the eighteenth level of hell. The old bar owner left Naihe Bridge and went to the human world to accompany the girl he liked. So he handed over Naihe Internet Cafe to Gu Han, and told Gu Han not to collide with the ghosts of Naihe Bridge casually, not to attack them casually, but to try to understand them, feel their emotions, and become friends with them. Guhan, who had received hellish training since birth, did not understand the meaning of emotions or the meaning of the old bar owner's words, so he just agreed first.
