unikun7 https://blog.hatena.ne.jp/unikun7/ Kiito’s Lab https://kiito-school.hateblo.jp/ Society The round cover at your feet is an entrance to the city’s “blood vessels.” You and I walk along the street after the rain. You can see several round patterned lids at your feet. These are “manholes.” We usually pass them by, but beneath them run broad passages that let water and air move—quietly str… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkiito-school.hateblo.jp%2Fentry%2Fmore-manhole-en" title="【Society】 More Manhole Stories! - Kiito’s Story Lab - Kiito’s Lab" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> https://cdn-ak.f.st-hatena.com/images/fotolife/u/unikun7/20250910/20250910122844.png Hatena Blog https://hatena.blog 2025-09-11 10:56:16 rich https://kiito-school.hateblo.jp/entry/more-manhole-en 1.0 100%