HA-HA Apartment is a minimalist house located in Kyoto, Japan, designed by ninkipen!. The project is an interior design of apparel manufacturing studio and gallery. The walls of concrete blocks are designed to be perpendicular facing the main street window, dividing the space so that it can be seen at the same time from pedestrians. The designers retained the tiles and the bond left on the wall as traces of their predecessors’ challenging into the future.