I Resurrect the Undead in the Exorcism Organization

When he woke up, Luffy, the demon king, was reincarnated into a small reserve member of the exorcism organization. At the beginning, you get the Dark Bible, the demon's treasure book, and you can get reward feedback by absorbing the power of ghosts? Rufu discovered the business opportunity for Gou to become bigger and stronger in the exorcism organization. Succubi, lava dragons, undead knights and other extinct demons have used the Dark Bible to cross the gate of Hades on the other side to complete their resurrection and use it for their own purposes. It just so happens that the worlds are overlapping, ghosts are rampant, and Mofu appears in the world. From then on, whether the world is in chaos or not is up to him... …