Have you recommended a modern cultivation novel about transmigration?

It seemed like a modern person brought Hongjun's Black Yellow Tower of Heaven and Earth across the other world and began to cultivate in his mother's womb. He was born into a noble family, and the emperor granted him territory near the Elf Forest or the Magical Beast Forest. He used modern thinking to create weapons and sell ice cream. He even planted a Tree of Life in his territory, attracting unicorns and elves. Then, the Tree of Life evolved into an ancient Tree of Life, which grew an elemental elf emperor, and so on. It seemed that there was a continent that later went to war everywhere and bought equipment for them. They even gave a country a few princesses to be his wives, but he forgot what the title of the book was. He was in a hurry. At that time, he hadn't finished writing it, but now he forgot the title of the book.