How many volumes of Testament of New Devil Sister light novel are there?

Demons, devils, ghosts and monsters Plunge the mortals weak in horrors; Arms of gods and blades of devils, Shroud the world in untold evils. Lu Sheng was an ordinary civil servant in the modern world. After waking from a drunken stupor one day, he found himself trapped in a dangerous world where demons, ghosts and supernatural monsters terrorize the land. In this world, ordinary mortals live in dark fear and helplessness, without any means to fight against the supernatural. As Lu Sheng struggles desperately for survival, he stumbles upon a game mod he had designed for a mobile phone app in his previous life. It unexpectedly becomes his special ability, which enables him to instantly level up any skill he learns, albeit at a cost. Thus, Lu Sheng begins his journey, striving for power beyond the reach of a mortal as he treads the way of the Devil…

Zhang Gong decides to learn light magic, a magic few show interest in and eventually becomes the legendary Grand Magister. While trying to end the continent’s east and west separation in order to unite all of the different races, he becomes every race’s Child of Light.

Just a warning before you read this, if you want an "alpha" MC who solves problems with killings then don't bother with this fanfic, its not for you. I'm already tired about people complaining about my MC being a "beta" because he spared a single enemy, so if you don't want that, please don't bother reading this. You have been Warned! ************* Just something that popped into my head after re-watching Yuragi-sou no Yuuna-san, and re-reading Hataraku Maou-sama. Anyway, the Main Character, Alex, suddenly found himself in the body of the Great Demon King Satan who almost conquered the world; Ente Isla. After that, he suddenly heard a voice speaking to him. And its not a system. **** Also, this is a Slow Paced Slice of Life, so if you don't like it, please leave quietly. And if you like MC who is a badass that will just slaughter his opponents, then this story is not for you. The MC, despite being OP, doesn't like conflicts, and will only show his power once in awhile. He only wanted to raise and take care of....well, just read it, if you're interested.

This is your typical cliché fanfic mash-up. Some nerd gets the isekai hammer, some wishes, and dropped in Highschool DXD, but when he gets there something is a little off. Have fun. I own none of the characters except maybe our nameless MC pre-Reincarnation. I own none of the referenced anime... obviously. This is all just for the funs while trying to think of original material. I may have to rewatch some of the animes while messing around with this. Read the Author's Notes at the end of the chapters. I put questions and stuff there. I don't do it in the body because it messes with the word count, and I think that's cheating.

Wu Mei, the First Miss of the Wu family and the legitimate daughter and heir to the company was schemed against by her family. Due to an accident Wu Mei struggled to survive and she had to do odd jobs for survival even though she was just eleven year old. The Wu family came knocking on their door and Wu Mei was happy that she finally had a to family but she was wrong. At age 12 she was sold to old man who owns an underground fighting ring. At age 17 she was taken to a brothel to be sold. At age 20 she was brought back to the Wu Manor. Happy that after all her sacrifice she could finally stay with her family, she was once again hit with the harsh reality. At age 25 Wu Mei died.... But after given a second chance to be reborn, Wu Mei came back like a devil crawling from hell and everyone who offended her before will have a hard time!! "Be sure to get ready cause Wu Mei is back!!

Eshwar is the name of the author who transmigrated into his own novel after his death. Eshwar’s death was caused by his own magic which he had yet to control. Why? because I didn't think I would seriously die!!!! Anyway.... my novel's protagonist is a selfish person. why you ask? because I wrote him and I wanted him to be like me. Muhahahaha, ha. I reincarnated into my novel! and that to as a villain who dies in the first half, will I stand still and die? Of course not, I may have reincarnated as a villain but its not like I will live like he did. I'll live my life as I want! and kill all the other villains. Why? because I love the world I created, hahaha, ha.... (real reason: I love to fight.), who else will get the chance to look at the world they have created? System I created is messed up for some reason and is doing everything on its own!!??? we'll see how it turns out with everything messed up, well(sigh...) Oh, but because i have reincarnated as a villain, I got a new problem and that is, I'm handsome (sparkles), I have to say, handsome people have their own problems. ==== SLOW START. [VOL 1 INTRODUCTION: MAYBE CONFUSING, BUT EVERYTHING WILL COME TOGETHER IN THE LATER CHAPTERS.] ==== I don't know who the artist of the cover is, but if you want me to remove it, you can ask me to do so(T-T)! Credits for the artist. And, Thank you for reading!!!!