There are about twenty maples at Akizuki's Kuromon gate. Twenty — few enough to count from where you stand. And yet the black gate beneath them is one of the region's fixed autumn appointments, at its best from late November into the first ten days of December. The lesson is plain: the trees are not the subject here. The gate is, and the red exists to frame it.

The gate has history in proportion to its colour. Akizuki became a domain when Kuroda Nagamasa's third son, Nagaoki, was granted fifty thousand koku here; the castle he built is gone, but the Kuromon survived, moved to the approach of Suiyo Shrine — which enshrines Nagaoki himself. The gate did not travel far, and it did not need to.

Walk through it and climb the stone steps with colour overhead the whole way; at the top, turn around. The gate sits below you now, black under red, the same composition inverted. Along Sugi-no-baba, the old avenue through the castle town, stalls set up for the season, and the street plan around you is still the one the domain drew.

Akizuki does not offer abundance, and does not miss it. A small castle town, one gate, twenty maples, counted and complete. You remember places like this longer than you expect to. That is the whole trick of it.