Palace in the Clouds
I'm glade this is the end. The MC is started to become like those young masters so called "geniuses". He has completely lost his modern wisdom, doing things like a native instead of someone from the modern world who suddenly gain access to time travel. He had TIME TRAVEL! There was so many ways he could have abused the situation and truly deliver a decisive blow the evil spirits.
The plot twist is surprising, but how and where do we go from here? 5 region arc ending? is he going to the celestial world, and did we just gonna ignore his other brother, and his mom is actually his dad disciple, I always thought his mom was hidden big shot, but couldn't find out why she become a concubine, and even made him, but I guess this is the answer. he have at least 10 brother maybe most of them already death after 200+ years.