Maliyana Haigou Yu (马里亚纳海沟鱼)

Office worker Li Yitai dies unexpectedly while working overtime and is taken to the underworld. However, upon checking the Book of Life and Death, they discover that his name isn’t listed. He doesn’t officially exist, and therefore cannot be reincarnated. Through a twist of fate, he becomes a “ghost errand runner"" and is tasked with capturing evil spirits. In the process, he also begins to uncover the hidden truth about himself.