Pinocchio, a space for artistic experience nestling in the secluded rural landscape near Unak Mountain in Pocheon, was a deserted space for more than two years. The owner wanted the bleak empty space to be remodeled as a space for artistic experience for children, while specific programs required exhibition, experience, a book café, performance, education, etc. The floor height of the existing building was considerable; the second floor was gable-roofed. Imagining Pinocchio in the stomach of a whale, I proposed a space with ‘a house in a house,’ so I vertically divided large spaces in the concept of attics and adjusted them to fit the scale of children. I tried to create a space that stimulates the imagination and susceptibility of children, meeting the purpose of space that the owner asked for. Instead of inducing interest by decorative and visual elements, I induced the children themselves to communicate with the interior and exterior of the building, roaming around various spaces of the building. Besides, adults as well as children were made to adjust them to their scale and blend in with the green surroundings that naturally change in line with time. In particular, the book café space plays a central role in the whole space, where scenic changes as a result of the fluid flow of sightline and changing external light are simultaneously staged by expanding borders by way of intruding the small house-shaped space outside through boring into the existing wall on the first floor of the main building.