At a corner of Kasuga City, known as a bedroom town in Fukuoka, a new hair salon and dry head spa complex operated by the couple opened here. Each store's dedicated and shared space is loosely connected to each other, based on the premise of one-on-one service by appointment only. We aimed to achieve both comfort and functionality in the hair salon space by using LED lighting with high color rendering properties to accurately show the color of the hair while actively bringing in natural light. The spa room is a space that provides an extraordinary experience by creating a soundproof, cave-like space using plastering and lighting effects with shadows that look like torchlight.