One Piece: My Conqueror's Haki Trains Automatically

Luo transmigrates into the world of Pirate King and unexpectedly awakens Conqueror's Haki, while also activating an automatic cultivation System! As long as he sets up a cultivation task, his abilities can cultivate automatically! But after using it for a while, Luo discovers that these abilities not only come to join him of their own accord, they can also mutate! [Ding! Your Conqueror's Haki has begun automatic cultivation!] [Your Armament Haki has been inspired by the incredible power of your Conqueror's Haki, increasing its automatic cultivation speed tenfold!] [The Dark-Dark Fruit has been won over by your strength and has come to join you!] [Ding! The ocular technique, Byakugan, has witnessed the power of your abilities and been deeply inspired, mutating into the Tenseigan!!]