The Protagonist's Sister Is Actually The Strongest - Chapter 18: Evolution

Zyran has finally ascended the throne of Draconia — but true power remains out of his grasp. The royal advisors hold the reins of the kingdom, and strange changes are happening within the castle. His queens grow distant, drawn into the advisors’ web. Whispers of betrayal and hidden desires fill the air. Is Zyran truly the king… or just a puppet? And are his wives in danger?Find out as the king’s fall begins…smut---Netorare--Netori---WeakToStrong---Harem---Incest---Humiliation

In a world where human and monsters relied on mystical fruits and their inner power to fight for dominance, a lost soul was thrown, given the powers from all the other worlds he’s known. But there was a catch; he had no control over what power he would get! With knowledge beyond that of most, he sails his path to the top of the one piece world!

- Description from Novelupdates

She was a descendant of the martial aristocratic family. She had just transmigrated when she was plotted against by others. She unexpectedly fell pregnant after a random encounter with a man.After ten months of pregnancy, she gave birth to a little fox! And this little fox pulled at her clothes and called her mother! Good thing is, the little baby fox was caring, adorable and obedient. In the mainland where good and evil are both present, the mother-son duo combined forces, suppressing all others with their expert skills, making those relatives who looked down on them regret a lot.However, one day, Baby Fox's daddy came looking for him. Not only did he want to snatch her child, he even wanted to snatch her along! The baby fox would not easily agree!Thus, the baby fox said with his hands on waist, “You want to be my daddy? Ok, hand over your money, and wait your turn.” Then the baby said to her, “Mommy, the uncle living next door is rich, how about letting him be my daddy?”

Seventeen-year-old Hajime Nagumo is your average, everyday otaku. However, his simple life of pulling all-nighters and sleeping in school is suddenly turned upside down when he, along with the rest of his class, is summoned to a fantasy world!