Created for a Christmas event at Midland Square in Nagoya, this installation imagines a small forest gathering into a luminous scene. Thinly formed tree units made from the special material Picasus sway with controlled wind. Gold and black coloration sends light oscillating between absorption and reflection, generating depth. As wind strengthens, the forest murmurs; as it calms, silence returns. Lighting responds to these motions, expanding and contracting shadows. The decoration is not a fixed object but an environment shaped by conditions of wind and light—a sensory forest emerging within the city.