The hiker reaches the ridge at Nikko on a Tuesday morning in mid-October. She almost didn't come. The forecast was uncertain. She had work.

From the ridge, the whole valley is on fire. Not metaphorically — yellow and orange and a red so deep it looks almost wrong, like a color correction someone applied too heavily. The cedars stay dark green, which makes everything else more intense by contrast.

She sits on a rock and eats an onigiri and doesn't check her phone.

The thing about kōyō is that it requires the same understanding as hanami, but colder. The cherry blossoms fall quickly, all at once, in a week of drama. The maple leaves turn slowly, over weeks, the reds and yellows coming in waves. You can visit the same slope twice and see different colors each time.

In the end, the leaves fall too. The trees stand bare through winter, holding the branch structure they've built up over decades. Then spring comes and they start again.

The hiker stays on the ridge for two hours longer than she planned. She is supposed to be somewhere at noon. She calls and says she'll be late.

Some things are worth being late for. Some things only happen once a year. The color will be different next October, on this same ridge, if she comes back. It's never the same kōyō twice.