I Just Became a Saint, and You Want Me to Bind to a Development System?

[the Myriad Worlds, multiple heroines, slice of life, slow burn, family, lighthearted, the System stays mostly in the background, expansive worldbuilding, fresh concepts, invincible among those of the same rank, when you beat the young, the old come after you? Sorry, I’ve got someone even older] My name is Lu Yun. I transmigrated, and after twenty-one years in this world, I finally became a Saint, the youngest in the history of the Xuantian Realm. That very same day, I awakened a System. I thought it might help me pass the time, but it turned out to be surprisingly interesting. I was reborn. In my previous life, I was betrayed by a human spy, trapped in a beast tide, and eventually killed. Reborn, with all the opportunities in my hands, I was sure I could return to the peak and lead humanity in wiping out the demon beasts. But then I awakened a System, which let me meet him... and see just how vast the world truly was... Even if I have to cross the starry expanse of the universe, I will find him! I am a princess of the Wind Elf tribe, but the Dark Elves attacked us, bringing my people to the brink of annihilation. I was lucky enough to escape and have been wandering far from home ever since. Then I suddenly awakened something called a System, and met my divine master... One after another, the people they helped raise; one act of help after another. They all came to share the same goal. The Xuantian Realm: Lu Yun!