One Piece: Became King of the World - Chapter 381 - 382: Esdeath VS Aramaki

Zack “Kazz” Foreman once was a human from the earth when humans went through a dramatic change because of an event. This forced them to evolve into energy-based beings but was sucked into another dimension.

Forced to start living out lives on random worlds in a fractured dimension, Humanity is placed on the path of complete extinction.

This is controlled by a demon king at a place called The Center of Everything.

The Demons try to force Humanity's mark from every reality, so there are only demons, but the Demon King feeds from anger and pain. A constant tournament going at the center of everything to feed his hunger.

Kazz made it to that point once, but was tricked, refused entry to the tournament because he had offed a place one of the gods of the worlds.

Refusing to give up, Kazz goes back to the beginning to start again. To do this, Kazz must give up all of his memories to choke the flow of demons born fully grown from a pool of recycled souls.

This journey starts after he lives a solitary life trying to get stronger but not knowing why. The world Kazz is on is like our earth, but it was only a mimic of the earth we know.

Caught using steroids and about to give up and join the army, Kazz stumbles onto a cave in the ground. He is transported to a world filled with demons and monsters, and a human god named Hero is speaking in his head.

Hero, a person Kazz knew but was not friends with, followed him to help but was lost from him. Upon meeting Kazz, Hero offers him the Hero System to help him advance in this new world.

Kazz refuses after trying to get to the top and failing to use the easy route. This starts a series of frustrating events for both Heroes, but they learn to work as a team over time.

Kazz will meet misbegotten monster girls and demons that he agrees to take care of in this world, using the Ranching System. It only gives bonuses to the girls and skills to help raise them, but he will also learn to control the Elements with Shamanic abilities.

After a series of life-changing events, Pei Ge decides to start anew and rediscover her place in this world. She gets a new job, new friends and… a new boss whom she mistakes as a male host!

He helps her to get revenge on a back-stabbing friend, supports her when it seems that the world has given up on her, encourages her to be more confident about herself and even… messes up her blind dates!

With her strong working abilities and fiery attitude, she manages to climb up the ranks in the company (under the devious scheme of a certain CEO) and even gains a fan girl who can’t wait to be her sister-in-law.

As Pei Ge navigates through the ups and downs of office politics, family drama, finding her right partner and societal expectations, she realizes that things are not as simple as it seemed and everything she had believed in is tested…

The Big Misunderstanding:

“You asshole! Why didn’t you use protection?! I’m pregnant!”
“…It’s not mine.”
“Asshole! You actually dare to not admit it?! I gave all my firsts to you! You jerk!”
…
At the gynecologist, she read her pregnancy lab report and was stunned: Irregular period.
The man raised an eyebrow and smirked, “Didn’t you make a ruckus about being pregnant with my child? Where is the child?!”
“…” Who is scared of who? Let’s make a bet!

This is a story of a modern man returning to ancient times, returning to a real world without any extraordinaryness, and slowly rising by relying on the ability to attribute all data.

- Description from novelbuddy

The first princess of the Cristiane Empire, Evelyn de P la Cristiane was arrogant, willful and selfish. She always shouts at her maids and tortured them.She was abandoned by her mother since she was born in the Black Rose Palace, far away from the main palace. The reason was unknown to everyone.Everyone in the empire called her “The Abandoned Princess” “ The Unlucky Princess” “ The Powerless Princess”. She was the object of ridicule throughout the entire empire.But everything changes at the Black Rose Palace when Princess Evelyn has a stair accident. When she awoke a week later, the arrogant, willful and selfish princess seemed to have completely disappeared. She becomes silent, sighing frequently and becomes disinterested in everything.In fact, the princess is an infinite reincarnator who always forgets her previous memories after reincarnation and regained those memories after undergoing some form of stimulation.But this time, she realizes that she is actually being reincarnated in a reverse harem novel's world from thousands of years ago. And now the main story of the novel is finally starting but she doesn't care.But she started getting unwanted attention and interests of others. As first, she didn't care but later she starts getting a bit worried as the male leads start showing interest in her rather than the female lead.Heir to the Grand Duke, Captain of the Shadow Knights, Future Master of the Mage Tower, Prince of a Desert Kingdom, a mysterious wealthy merchant, The Prince of the Elves. Even some unexpected peoples.Evelyn: Logically, I am the ancestor of even your ancestor's ancestor. So, would you all please go away?. I'm already tired of this reincarnation thing. i don't want to be forced to remember anyone's name now.