“Fall in/Fall out” is an installation that transforms according to the seasons and the public’s needs. During winter, visitors can sit in this pavilion and experience its inside and outside. However, this new installation will be separated into 169 chairs after the temporary installation in winter. These chairs will provide the public with the opportunity to hang out on the sunny beach during spring and summer. The form and function of the installation will be transformed, but will still exist in a different shape. It will be comprised of wooden chairs. Three wood preservatives with different colors will be used to treat the 50mm x 50mm timber, creating a visual deception like a pixelated or camouflaged pattern. The assembled installation does not give any clue that it has been made from chairs during winter. However, visitors will soon realize this and see each chair after winter.