One Piece: Fist of the World - Chapter 14: Set off, Polaris!

Master martial artists were beings that no one can obstruct. A martial arts expert has been reborn into the body of a genius whose cultivation has been abolished and has been abandoned by a woman. Therefore, he starts cultivating the art of Xing Yi Quan, producing a solar system within his dantian. His innate talent tramples over all the geniuses, and even the geniuses among geniuses.

His powerful spirit and ruthless and ambitious nature, no matter who he is reborn into, will never change! Slaughter is instinctive, being cold-blooded is his personality, exterminating an entire family is only a means towards a goal, cruelty means infamy, and chasing after women… is just an interest.

- Description from Novelupdates

"Your granddaughter claims she likes girls while my grandson is rumoured to be bent so… don't you think they are a good match for each other?"

One minute, she was spiraling out of her scooter, watching in horror as her fried chicken flew into the horizon. The next minute, she was signing the contract to become a mother to his sons while staring into his glacier blue eyes.“The contract is effective as of now” He announced, as he dropped the pen. His brow was lifted challengingly and his voice reverberated around the room, bounced and sent zings of electricity down her spine.She tilted her head to a side, studying him covertly as she smiled menacingly. She was going to make him regret his decision.Let the games begin..!

The Xie Family all studied law, possessing the fine qualities expected of a scholarly family. Xie Shang too had them: elegance, deep learning, a Fragrance Connoisseur versed in classics, also skilled in zither, chess, calligraphy, and painting.But he was mad, capable of reciting the scriptures while holding a Buddha statue, as well as breaking people's hand and foot bones, very gentle, yet very cruel.Xie Shang didn't become a lawyer but opened a pawnshop instead, where you could pawn anything as long as the story was compelling.One day, someone came to the pawnshop and told a story:In Fragrant City, there was a family with the surname Wen, where daughters took their mother's surname. The daughters of that family could cast spells, the kind that bewitched men, leaving their lovers either buried with them or taking vows of celibacy; in short, either dead or destined for a lonely life.Xie Shang's uncle had died in Fragrant City, which is why he accepted this particular pawning business.Bewitched, confused, thrilled, deeply in love, but love unattained, and a pain so intense it made life unbearable. — This was the script Xie Shang had prepared for the deaf boy Wen Changling.In the end, it was Xie Shang who ended up with this romance-addled script.Wen Changling: Are you surprised, Mr. Xie Shang?(This isn't a book transmigration story, it's a contemporary sweet romance. The 'script' in the book title implies deliberate plotting.)