"This world is full of things you have never known, places you have never set foot in, and no sounds you have heard." There is a woman in the Baicao Hall who can listen to the sounds of all things in nature - Azhi. As long as there is a commission, she can cross the human world and the River of Forgetfulness, reality and dreams, here and the other side, to help people fulfill their wishes. However, no one can guess her true identity...