No harem, no System, just an easygoing, supernatural action romp.
Black holes descend upon a chaotic world, and all manner of slumbering demons awaken.
Du Tian arrives after transmigrating, carrying fragments of his memories from a previous life.
Here, he is diagnosed as mentally ill.
But a madman's memories can be terrifying...
Breaking through and crushing all opposition takes only a thought; making up techniques is all in the delivery.
“Why does this place look familiar? Have I been here before?”
“I remember now. I can read the language of corpses.”
“Wait, let me take another look... What? Did I transmigrate into the world where I used to hunt demons and exorcise evil?”
Night Demon: “Reporting to the Evil King: someone named Du Tian just killed me instantly.”
Evil King: “What are you panicking for? Send the Eight Vajra Warriors to deal with him!”
The Eight Vajra Warriors: “Reporting to the Evil King: we were killed instantly too.”
Evil King: “Unbelievable! I shall go deal with him myself.”
Du Tian: “Heh. In the world of my memories, you think you can run wild?”
It's a bit chaotic, but the plot progresses quickly enough.