Legend has it that there is a tiny grass on the Red Dust Mountain that can bring people back to life and make them immortal.
The most beautiful person in the world, Yimo, was injured by violence, and a generation of kings were willing to give up their country to find a life-saving medicine for her.
At the foot of the Red Dust Mountain, he met Su Ji who looked exactly like Yimo...
He is infatuated, but he doesn't know who he is infatuated with. In the end, it was just a dream, nothing, flowers in the mirror, and moon in the water.