It is the head office building of a company selling stone as an accessory. "A space where employees can work comfortably while satisfying the head office function. It is a work by the competition which was done under the meaning of "the object. Energize the interior with light, water and green, with the power of the stone inside, and release energy that releases it through the curtain wall of the frameless glass. I imagined a building like a "jewelry box". It has a function to bundle stores nationwide, and a function as a place for relaxation of employees.