I Clear Dungeons by Eating Ghosts

[Mindless power fantasy] + [one female lead] + [no fixed couple] + [everyone loves the protagonist] + [Infinite Flow] + [mild horror] Creepy things? I gobble them all up! Hey, hey, hey! Why won't you let me go back to reality? I'm really not one of those creepy things! Wait, you say you know me? Ugh, my head hurts so much. Could it be that I'm... I'm *****? Heehee, hehehehehe! I think... I'm starting to remember a little. Readers, proceed with caution and keep your brains switched on. It's not that the story is mind-bending... I'm just asking you to go easy on me (/ω＼)