Seasonally, street sleepers in Kwun Tong Public Pier need to move out like the tide falls during the pier clearance by authorities, and move back to the pier like the tide rises afterwards. A mobile unit prototype is built with street sleepers themselves to deal with the seasonal clearance. It attempts to save construction materials without destroying the settlements in each clearance, which save energy for street sleepers rebuilding shelter and authorise to dump the construction waste respectively. By enhancing the efficiency of moving in and out, the project hope to stretch the tension between authorities, public and street sleepers on the usage of Kwun Tong Public Pier. The team will continue to document the intervention and situation of the pier in the upcoming clearance.