Okami Wa Nemuranai - Chapter 52.9

Ron finds himself reborn in the world of One Piece, stranded on a remote island in the East Blue. But he's not just any ordinary child—he’s bonded to a mysterious sign-in system that grants him powers with every new location he visits.At his first sign-in, he unlocks the legendary Sun Breathing Technique, along with a boost to his vitality. From Shitmotsuki Village to Skypiea, Enies Lobby to Marineford, Ron travels the world, collecting extraordinary rewards that make him a force to be reckoned with. The Raikiri, one of the 21 Great Grade Swords, Armament Haki, Observation Haki, and more fall into his hands.As Ron steps onto the battlefield of Marineford during the legendary Summit War, the mightiest warriors—Four Emperors and Marine Admirals alike—pause, stunned by his presence. But Ron merely waves them off, “Don’t mind me. I’m just passing through.”Join Ron on his journey across the Grand Line as he signs in at iconic locations, growing stronger with every step. This is not just an adventure—it’s a legend in the making.

A legendary powerhouse of his generation, tired of the bustle of the peak, returned to the ordinary city and started a new life as an ordinary teacher. He wrote the legend in the city.

Magnificent mountains and rivers, the rising powerful ones. Some ancient martial art masters stood at the peak, becoming legendary. Some financial crocodiles rose up in the minuscule places, laughing arrogantly.

However, watching the school beauties was better than fighting and killing; educating was better than fighting for fame.

- Description from Novelupdates

“You shouldn’t be so self-centered. You’re lucky that Mr. Mu wants to marry you. You have no right to turn him down!” Bei Shuo felt cold on the inside after hearing what her father said. Having gone missing when she was a child, Bei Shuo was found a month ago. Before she found her biological parents, she always thought she’d have a loving family. However, when she finally returned home, she realized they had adopted another girl long ago. After more than a decade, the girl had replaced her completely. Her parents, her brother, and her fiance…

The Bei family never showed her any form of affection. On the contrary, they wanted her to marry Mu Ci for their own benefit after she had just returned. Everyone in the city knew that Mu Ci wouldn’t live long. Besides, he had an aggressive personality. Anybody who offended him would suffer badly. Bei Shuo would probably end up dead without even knowing what caused it. Hence, when she married Mu Ci, everyone in Empire City waited for news of the horrible ending. To everyone’s surprise, she actually cured him, and he even ended up pampering her! At the same time, it was revealed that Bei Shuo was actually the disciple of a miracle doctor, a top-tier hacker, a champion racer, and the founder of an international fashion brand…

On top of that, wealthy tycoons, talented directors, and e-sports professionals all spoke fondly of her. “Everyone, please allow us to introduce our favorite junior!” The man who was rumored to be cold and violent pressed his head against Bei Shuo’s shoulder when he found out about her countless identities. “How many more identities do you have?” he asked with a pout. Bei Shuo ran her fingers through his hair and smiled. “There’s only one left, and it’s the most important one. I’m still Mrs. Mu!”

Transmigrating into a world of cultivation, you find yourself at the lowest rung of the sect's hierarchy. Everyone wants to bully you to gain some benefits. Fortunately, there are always a few junior brothers and sisters who are 'generous and understanding', allowing you to improve peacefully and secretly grow stronger. Years later, unbeknownst to anyone, you successfully become a deity within the sect. This day, your master visits you at the sect's request.'The upper echelons of the sect believe you have been diligent and loyal over the years, and though your strength is mediocre, you are an honest person, so they've found a marriage alliance for you.''An alliance marriage?''Not exactly. The other family has a rule: marrying into their family means taking their surname.'Is this... becoming a son-in-law who marries into the wife's family?