Once upon a time there was a flat hilltop and a small weed growing on the hillside.
There are thousands of descendants of weeds, all of whom have entered the world of mortals to enjoy their happiness.
Only weeds that last for thousands of years will not transform into immortals until they survive the calamity.
Just when I was sighing that I had no fate in this life, I attracted the immortal king to ride on his horse.
Grace transforms human nature into weeds, causing evil fate in the world to bloom.
[Actually, it's the story of a piece of grass climbing onto the bed of the Immortal King]