I'll Teach You, Marianne. - Chapter 682 - Intruders

Upon waking up, Ruan Xia had transmigrated into a webnovel that she had stayed up all night to finish reading. She had become the villain’s mother.

In the novel, after the death of her first husband, the original owner of the body had hooked up with a Mr. Perfect at the fastest possible speed. Worried and discontent that her son from her first marriage would become a burden on her, she heartlessly abandoned her son.

Having once held the best quality script and informed of future events, Ruan Xia looked at her still alive first husband as well as her future villain son. She sighed. She wanted to apply for a different script!

- Description from Novelupdates

He died on the wedding of the girl he had a crush on, after a long and successful career. After convincing Yama to send him back to the world, he decides to fix the areas in which his life went wrong. Realizing the lack of love and romance in his past life, he sets out to conquer the hearts of various women.

I, Hyoudou Issei, am a 2nd Year High school student and my age is equal to the number of years I haven’t had a girlfriend. And, someone like me got a girlfriend! I’m sorry buddies, I will walk the path of becoming an adult before you guys! – That’s how it was supposed to be, but why did I get killed by my girlfriend!? I still haven’t done anything yet! Are there no Gods in this World!? And, the person who saved me is the most beautiful girl in my school, Rias Gremory-senpai. I learned the shocking truth from her who isn’t a God but a Devil. “You have reincarnated as a Devil! Work for me!” Lured by Senpai’s breasts and treats, my life as a reincarnated Devil began. So the “Academy×Love Comedy×Battle Fantasy” starts here with just aggressive and worldly desires!

Cliche. Another monster progression story. That was probably what you thought when you read the title of my story. And, I can't lie, for the most part, it probably is.But, what else am I supposed to do when I've been thrusted into a world that could kill me in an instant? There's nothing to do but to progress, to devour and evolve. You would do the same too.Such is the basis of a monster.Such is the right of any living being.So that's what I did. I ate, I killed and I hoarded anything I could get my big limbs on. Friendship, allies and love? There used to be a little god calling himself “Heaven's Equal” who spouted of such things, before I ate him. The world went pretty quiet after that.Follow my story. Read for yourself how I evolved from a little monster in a lake I thought was the ocean, all the way into the Titan Of Destruction.What To Expect:- A relatively quick progression story- Ruthless, I mean - Fang Yuag levels - of ruthless protagonist.- A system? that grows stronger along with the protagonist- Big Monsters Duking It Out, with minimal humans/beastmen/elves, etc. . .focus. Basically, monsterverse without annoying ass humans ruining the show.- Did I mention that the protagonist was pretty evil?