A small town listens to an old woman describe what her neighborhood used to be, and that act of listening becomes the entire point. The show trusts that watching someone's memory matter to city planners is enough to move you. It's not interested in spectacle or conflict, just the quiet power of an elder's voice shaping the future of a place she's loved for decades.
Ichimai no Etegami is a single-episode OVA made as an educational film. Its subject is town planning, and its argument is that the views of elderly residents deserve a real place in those decisions, since they have lived in the community longer than anyone else. The film makes the case that the people with the longest experience of a place should be consulted when its future is decided.