A dreamlike opening, with scenes alternating between light and shadow. It is the beginning, the ending, and also the core of the entire film.

At first, the whole world contains only the protagonist as a child and the small flower in his hand. The flower corresponds to the tree. After growing up, he controls the world: the falling leaves returning to the treetop, more trees growing, and the sun appearing. As the world becomes more and more complex, the protagonist can no longer bear it. He stumbles during a dance step and turns his head away from the dazzling light.

After the world collapses, everything returns to the same simplicity as the beginning. The shadow returns to the light source. The protagonist grasps the final light, and when he opens his hand, there is the same flower he held as a child.

After growing up, there are many identities and different problems to face, but the self still remains in childhood. This film records the first time of facing a complex and collapsing self after growing up. It is a longing for and pursuit of simplicity.