Regressor of the Fallen Family - Chapter 245: Arrival at Raftan

After a young lonely orphan boy died on earth, He was reborn as the Prince of the Everhart Kingdom in Melux. And in this life, he got everything he ever longed for: Luxuries that he didn't have, magic that he only read and fantasized about, different types of sweets that he didn't even know about but most importantly, he finally had a family!He was pleased with his new life as he had parents who despite being the King and Queen of a Kingdom always managed to spend time with him and His maid who would do anything at his words. He could experience the joy of sharing a dinner with family, getting angry over silly things, and then apologizing while bawling his eyes out. He finally felt like he was not alone in this universe anymore and he also had people who cared and loved him dearly. His second life was seemingly perfect in his eyes until that horrifying and gut-wrenching night that flipped his entire world......

Going for a swim, she ends up in an ancient wild Beast World and ends up being brought home by a handsome wolf.
She wants to stick to the handsome wolf, stock some salt, farm some land, look at some handsome men and grow old like that, but the handsome wolf pounces on her every day.
What? He wants her to have babies?
NO~ NO~ NO~ There is no happy ending to interspecies marriages, hurry and let go of me handsome wolf~

- Description from Novelupdates

Choices. Crossroads. Opportunities.Plunged into a broken world ruled by the strong, Damien must decide how his newfound life will proceed. Navigating through conflicts and alliances, his journey intertwines with the fates of powerful figures and kingdoms, challenging the very fabric of the hellish world.Set against the backdrop of the legendary One Piece universe, this tale reimagines familiar characters and lore, weaving a narrative that explores themes of power, redemption, and the indomitable spirit of adventure. Damien's quest is not just for treasure or glory but a deeper pursuit of a truth that could change the course of history.As the tides of the Grand Line shift and churn, Damien confronts the harsh realities of the pirate world, facing challenges that test his limits and forge his legacy. In this saga of the high seas, only the bold dare to dream, and only the strong survive. Will Damien rise to become a legend among pirates, or will the unforgiving waters claim yet another soul? The journey to discover 'One Piece' is as perilous as it is wondrous, and for Damien, every choice and battle is a step closer to his ultimate destiny.Join him as he goes against all odds in the world of Pirates, Marines, and Revolutionaries, sailing on the Path to Power!

Another entry in what you can call the Proto Harem Series: the books written before the Harem Series that take place in the same world.

It’s about a swordswoman whose student is captured, so she goes to rescue her.