Demonic Control System

Shh! Look what I found? There is a wild high demon out there! Its magic content is three times that of ordinary angels! As long as we go over from behind and knock it down, and give it a few rounds of super holy spears, we can make it our little brother! If you have time to train, it will be more exciting when you take it out to slay dragons... PS.1: This is a story without integrity, so we can only let the protagonist go to Japan to cause trouble. In China, this book will get 404 sooner or later. PS.2: The world view is adopted from "Shin Megami Tensei 4f". This game is super fun, and it is also a Chinese version. The author is very positive!