With Hundreds of Millions of Immortal Soldiers, You Are Called the Immortal Emperor?

[System + fairy kingdom management + multiple female protagonists + summoning + decisive killing] (There are many female protagonists in this book, so don't read if you mind) Wu Yu traveled through time for more than ten years before awakening his memory and found that he had just ascended the throne and became the leader of a country. I originally wanted to be a foolish king, have many children, be blessed, and have a happy life, but I ended up learning that this is a world of cultivation, where there are many strong men, and the sects dominate the human dynasties. There are powerful enemies outside, and there are treacherous ministers inside who are causing harm to the country, and the pure sky collapse starts. Fortunately, the [Fairy Kingdom Cashback System] has been awakened. As long as you consume resources, you can get tenfold cash back! The stronger the fairy country is, the stronger he himself is! Thus, Wu Yu ushered in the era of cultivating immortals for all people. You can use the spiritual stones that others are in short supply as long as they can be consumed! Feel free to take any elixir as long as it can be consumed! The secret spirit liquid is used to water the ground, as long as it can be consumed! Our fairyland has one principle: use as many resources as you can, which is inhumane! Using the system, an eternal fairyland is rising. Many years later, looking at the boundless billions of immortal soldiers and generals in the distance, Wu Yu, who had become an immortal holy body, turned back to look at a sacred elephant in the sky: "You don't even have an immortal kingdom, how dare you call me the Immortal Emperor?"