Use the System to Invade

I want to do it, synonymous with killing, synonymous with madness I will definitely become the devil who slaughters everything, the devil who invades the world ……… In fact, it is a story about a madman and a demon king using his form to invade the world. ……… A new book for a newcomer, the writing is excellent, I am too lazy to write a batch, it is a practice work, it is updated from time to time, it is not recommended to get into this trap This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.