Decent soba lunch at this sobaya with good Tabelog rating. The sea urchin soba was a monthly special, but in the end was not that interesting.
The vegetable tempura was decent, but the appetizers - which came at the end - felt a little overpriced.
Full account of lunch is on my blog: https://www.diarygrowingboy.com/2024/12/tokyo-2024-day-7-cats-and-noodle-part-2.html