Traditional Japanese earthen walls (tsuchikabe) represent a refined construction system where structure, material, and craftsmanship operate as one. Built over a lattice of woven bamboo (takekomai), layers of earth-based plaster are applied gradually, producing walls that regulate humidity, provide insulation, and age with dignity. This method relies on close collaboration between carpenters and plasterers, where knowledge is transferred through practice rather than drawings alone. Unlike indust