Entering the Era of Global Demonization

In AD 3023, Pluto exploded and nine demonic pillars fell from the sky. In the last thousand years of humankind's era of demon sealing, only one hundred cities and five holy cities were left as the last remaining place to fight against the demons. Machinery, technology, sealed magic, demons, and the top ten can move mountains and seas, and are omnipotent. I woke up from my confusion and vowed to kill all the demons in the world. This is a legend about a "magician". This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.