It follows a mysterious immortal being named Fushi, sent to the Earth with no emotions nor identity. Fushi is able to take on the shape of those around that leave a strong impression on him. Starting off as a white orb, he takes the form of a rock, then a dying wolf. As a wolf, Fushi meets a boy living alone, whose form he later takes. Fushi travels the world over hundreds of years, taking the forms of various beings, and acquiring new powers, such as the ability to create objects out of nothing, and resurrecting the dead.