One thing that confuses me: the MC has no Ghost Power but still clears gates using only ghost objects and that strange power? The novel mentions he uses some kind of energy that isn't Ghost Power. Is it his author power? Or the ability from his readers? I hope this gets explained because it feels like a plot hole right now.
I had a laugh at the line “If you don’t believe me, we can ask an Elder at the Void Soul Realm to use their Divine Sense to check.” The casual introduction of high-level cultivation concepts as a solution to a hangover is peak xianxia logic. It underscores the massive power gap between the mortals and the cultivators. For them, a hangover is a simple medical problem. For the immortals, it might require a soul-searching sage. This casual invocation of superpowers to solve mundane problems is a trope, but it was used well here to remind us of the world’s rules.