Making a group with five to ten families, it urged their solidarity and development of local autonomy, and was used for mobilization of citizens and obligatory supply of materials to the government, distribution of controlled goods, and defense activity against air raids during wartime.
5軒から10軒の世帯を一組とし、団結や地方自治の進行を促し、戦争での住民の動員や物資の供出、統制物の配給、空襲での防空活動などを行った。