The site selected for this plan was the outskirts of Onomichi-city Hiroshima overlooking the Seto Inland Sea. While The place has scenic beauty of coastal v iew, It has the road congested with traffic towards the land. For this situation, we t ried to harmonize this site with the scenery by twisting slab to produce the undulation of it. The undulation produced by twisting slab bind the grade of the living room and coastline, and release our sense to the graceful view of Seto Inland not only confronting the beaut iful nature, but also enfolding the nature just as they are in architecture and to re store the li ving into the nature. Moreover, the undulation becomes pilotis. It ensure the view toward the sea of the local residents. It also makes possible consciously separayion from the unorganized view of the road side by closing the living spaces.