My Perverted Devil system

[ Warning: Mature content ] In a world where strong is the king and weak don't have any right to even raise their heads. Eric, a boy of ordinary origin, was beaten to half dead state and thrown into the Demon abyss for ruining the mood of an influential family's young lady by simply appearing in front of her. Fortunately or unfortunately for him, he was saved by the devil lord residing deep into the demon abyss and was offered a chance to live, take revenge and give his family a safe and better life or die. Eric naturally chose the former. However, he didn't know how his life would change from that point on. ----------------- Before you read: 1) Remember it's an R-18 rated novel with lots and lots of explicit sexual content. So, if you don't like reading such stuff, I advise you not to read it. Of course, you can read it for the great storyline. 2) My first language isn't english so you may find some small grammatical mistakes but I assure you that they won't worsen your reading experience. 3) I would really appreciate if you could point out any grammatical mistake, plot holes etc if you find any. It will help me improve and create a better story for you and your fellow readers. 4) I'll try to upload one chapter daily. If you happen to like the story and want more chapters, you can encourage me to upload more by voting your Power stones, Golden tickets and lovely Gifts! Happy reading~