Eri's Route 1 (as drawn) over our reshape, same October axis. 4 pax. No snow. Roughness 0 chill to 10 Dolomites-hard. Red outline = the added Tokyo days before the festival.
Kept & aligned
Party → hike → Tokyo Skip Kyushu (her idea) Yakushima + Minakami No snowOption A — max hiking
Keep both treks. Tokyo stays ~5 days, Yakushima stays rough. Roughest, most Dolomites-like.Option B — full Tokyo week
Drop Kumano. Frees ~4 days: Minakami + Yakushima traverse stay, Tokyo reaches Eri's full week.Fixed anchor: Labyrinth Oct 10–12 (Minakami Hodaigi). Oct 21 buffer is load-bearing for Yakushima weather risk. Day-by-day, budget and sources in the Google Sheet.