Mo Lin takes command of the Yin Department in Yedou, the ghostly metropolis, armed with the Ghost Suppression Book as he ventures back to Earth. Evil spirits have already infiltrated the mortal realm, yet Mo Lin's power far surpasses theirs. When warned by locals—"Young man, avoid the night streets. Ghosts roam freely, and the danger is immense"—he simply smiles. "Ghosts terrify you? I thrive on their presence. Every spirit that emerges only fuels my hunger for battle."