Yomogino Ryokan (Japanese Style-Inn), in Fukushima, Japan, decided to renovate their hot spring spa after damaged of the 2011 off the Pacific coast of Tohoku Earthquake. Completion is 5 month anniversary after the quake.The Place faces Yomogi Mountain in Fukushima, Japan and can experience the great view of the four seasons. It was also one of the focuses how it has relationship with several detached building of the ryokan (Japanese Style-Inn) in foot, luxuriating change of the four seasons.The form of a mountain and the roof form of a detached building are reflected in the hot spring spa’s water surface, and it makes it mingle with an internal wall and the form of a ceiling.A ceiling and a wall are the bronze color aluminum panels by season-proof high alumite processing. It exists, while the form of five ceilings shifts. Indirect illumination is effectively contained in the portion of this gap.