Harry Potter: Eclipse. - Chapter 17:

“How many people have you killed? How many families have you destroyed? How many towns and cities have fallen because of you!?”“I don't remember.”The villain whom the main character was destined to defeat at the end of the novel. That was who I had become.There was just one problem...“Why am I a teenager!?”“Why is there a school acceptance letter on my desk!?”

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.

The devilishly charming Villain’s lips curled up and said: “Kiss me, hug me, hold me.”

The cold icy beauty’s eyelashes lowered slightly: “You said you would marry me, you can’t take it back.”

The yandere youngster’s eyes were deep and dark, raising his eyebrows and laughing softly: “Other than my side, where do you still want to go?”

…… Yu Chu felt helpless and could only ask help from the Main God: “My Lord, your soul shards are always flirting with me, but I don’t want to be flirted with, what would you say I should do about it– Huh? Yeah, I really don’t want to be flirted with.”

“Hey, wait wait….. Don’t be angry, hey, don’t feel wronged either, holy crap, don’t act cute and spoiled, okay okay, I will let you flirt, I will let you flirt alright!”

- Description from Novelupdates

A teenager who unexpectedly gets transported to the modern world from ‘the world of the immortals’ . He finds himself in the body of an ordinary guy. He wants to go back to his world and for that, he will have to practice to get stronger and investigate the reason why and how he crossed through to this world.