The three-story atrium space from the first floor to the basement expresses the curvaceous beauty that overlaps by setting a spiral grid, and creates a boundary between the inside and outside. The interior of the store has rooms on the left and right from a single conductor, creating an ambiguous atmosphere. We aimed to create a space that enhances the vitality of human beings and enriches the mind and body by giving a feeling of openness and closure by the fresh air flow and sound that makes us feel the outside air, and the light and shadow that can be felt from the space where the inside and outside are ambiguous.