One Piece: From the Start, I Gain Kaido’s Physique and Become a Dragon

Li Qian transmigrated to the world of Pirate King, where he was nothing more than an ordinary Marine. Other transmigrators became admirals or one of the Four Emperors, while he was just a nobody who could be casually knocked unconscious by Conqueror's Haki. The gap between their lives was just too great. Fortunately, all hope was not lost. Li Qian ate a Devil Fruit and gained Kaido's physical prowess and Devil Fruit ability, allowing him to transform into a dragon. From then on, he embarked on the path to becoming the strongest. With his monstrous strength, he became the mightiest person on the seas. The Four Emperors, the Shichibukai, the Worst Generation, and the main cast were all defeated by him. Kaido: “Li Qian, be my son. I'll marry Yamato off to you and make you the admiral of the Beasts Pirates.” Shimotsuki Yasuie: “First Kaido, then Li Qian. The evil dragon still circles above Wano Country, and it's even stronger now.” Blackbeard: “There's no doubt Li Qian is a monster among monsters. You'd better not make an enemy of him.” Sakazuki: “You're the future of the Marines. From now on, you'll bear the name of justice, Li Qian.” The members of the Marines' new faction, the One Heart Society: “Loyalty! We swear to follow Admiral Li Qian to the death!” Surrounded by his subordinates, Li Qian drew his sword and pointed it at Mary Geoise. “The enemy is in Mary Geoise! Storm the Holy Land and drag those so-called Celestial Dragons from their pedestal!”