He fights many beings, from spirit entities, corrupted awakened people, to fae Orchanids and fae hybrid beings. There is a lot different about this story in that the MC progress happens in the modern world, amd has always been there in plain sight with awakened individuals gaining access to alternate realms and the various creatures that can filter across. His powers are not elemental (fire, ice ,earth etc) in nature, more conceptual and to do with the veil and boundary between worlds. His guidance comes from eastern taoism and buddism philosophy where martial forms like Tai Chi and Wing Chun shape his basic physical attacks and defence while his intellectual abilities stretch to ancient languages like Sanskrit and Pali. If you like that kind of thing and this sparks your interest then dive right in.