One Piece: I'm Destined to Be the Son-in-Law King! - Chapter 90: Instructor, There’s a Creep Here

In her last life, she was miserable and ordinary. This time, she got into the fashion and was reborn in another world. She was still the same person… even with the same body and face. What was the point of reincarnation? A childhood companion? He always pulled her hair and made troubles for her? A handsome boy? The boy never looked at her and was 15 years older than her! A prestigious teacher? The teacher spent his days eating and drinking, coaxed, played tricks, and controlled others… Too scary and better run away? No no no, such a challenging life was bound to be wonderful! Now let me take you back to the 70s and live a fast life!

- Description from Novelupdates

Gu Man, who transmigrated from ancient times, woke up in the body of the Gu family’s second daughter.

As soon as she woke up, she saw the fiance of the original body who had hooked up with her stepsister. Faced with the scumbag’s confident questioning, disgusted gaze and a slap to her face, Gu Man’s reaction was to return a fierce blow to him. She hit him until he was dizzy and knelt to the ground, his lower body covered in cold sweat. Gu Man only realized that a video of her walking into the room had been leaked after she left, and the matter had begun to spread rapidly.

Countless people insulted Gu Man and called her a mistress.

Faced with a two-faced stepsister, a malicious and deceiving stepmother who climbed her way up from being a mistress, and a father who couldn’t tell wrong from right and treated her as more of an adopted daughter, as well as those stupid onlookers who didn’t know the truth of the matter and called her a country girl… Gu Man ignored them all.

The top scorer in the college entrance examination, top hacker, divine doctor, financial tycoon…

All kinds of identities were attached to a single person. Gu Man relied on her own strength to ruthlessly slap them all back in the face!

The noble Xiang family’s eldest son, a powerful man in the capital, even declared to the public that his wife was mischievous, and that he would take the blame if she made a mistake.

Just when everyone was wondering who this sweet wife of his was, the entertainment headlines published a photo of him holding his sweet wife as they walked in and out of a high-end hotel. The woman in the picture was Gu Man!

Xiang family’s son: Everyone, meet my wife!

“Compared to our time, the current generation just aren’t as reliable” they said, “Still, isn’t he the son of the Hero?” How annoying.

It’s been over ten years since the battle between mankind and the demons ended. The children of the heroes who saved the world are all grown up.

One of them, Earth, was a talented man, and everyone expected him to succeed his father as a warrior and defend his country, but Earth was always wary of his father’s title.

One day, Earth is shocked to find his father’s sword, which was used to overthrow the Demon King, sealed in his family’s mansion.

Because trapped within was the ghost of the Great Demon King who was unable to pass on and continued to roam the world.

For some reason, only he could see the spirit of the Demon King, and the Demon King possessed him through the sword.

Every day, forced to coexist with the spirit of the Demon King, they live a strange shared life, when the Demon King whispers to Earth on a whim.

“I have a grudge against your father. If you want to get back at your father and the world, I’ll train you. I’m free.”

Earth receives special personal guidance from the Demon King just to get back at his parents and the world.

Then, in the coming days. The hero’s parents, the heroes of the past, the first love, the princess childhood friend, the geniuses of the era, and the world will tremble.