Building today in the metropolis of Seoul gives the opportunity to restore the built volumes to a human scale and interpret the spirit of a culture. An empty urban block, pressed between the incumbent city volumes: it becomes a fossilised tree that seems to breathe in the interstices of its geometrical fringe, expanding the limited spaces of the city. The macro scale is condensed in the voids designed by this organism, coming alive through its cubic grid. A generator of the elements that contribute to the state of comfort of the dweller and his relation to his context.