From the Start, I'm Competing at the Highest Level in One Piece

Knowing he didn’t have long to live, Qin An made a choice before entering Fujikun with explosives. He transmigrated into One Piece and ended up aboard Whitebeard’s ship, where he also gained the powers of the Twelve Talismans. When his experiments with those powers were taken as a challenge to the Whitebeard Pirates, he began a series of challenges, taking on the entire crew by himself.

Qin An soon attracted the attention of every major power. He learned that the story began two years later, and used his knowledge of the plot to defeat Arlong and bring Nami and Nojiko aboard his ship; defeat Crocodile and recruit Robin and Vivi; then take down Enel and bring Conis and Raki aboard. His motto was to leave no one behind, and later there would be the mermaids of Fish-Man Island…

With the powers of the Twelve Talismans, Qin An carved out a place for himself, built an empire of his own, and lived a carefree life. He even conquered the World Government along the way and toppled Imu from the throne.

So far, the women include Nami, Nojiko, Kaya, Vivi, Raki, Conis, Aisa, Mikita, Paula, Kuroko, Shirahoshi, Shyarly, Ishilly, Sera, Camie, Ruraz, Mero, Robin, Figarland, Bonney, Hancock, Marigold, Margaret, Eufrandra, and Kikyo.