Day 1
Matsumoto: The Black Crow Castle
Morning
Arrive in Matsumoto by limited express from Shinjuku (2.5 hrs) or shinkansen + transfer via Nagano. Head straight to Matsumoto Castle — one of Japan's 12 original feudal castles and arguably the most dramatic, with jet-black walls reflected in the moat. Book tickets online to avoid queues.
Afternoon
Explore Nawate Street (the Frog Street) and Nakamachi — Matsumoto's well-preserved merchant quarter with Edo-era black-and-white kura (storehouse) buildings converted into cafes and craft shops. Visit the Japan Ukiyo-e Museum if interested in woodblock prints.
Evening
Dinner in Matsumoto featuring local specialities: soba noodles (Nagano is Japan's top soba producer), horse meat sashimi (basashi — a regional delicacy), and Matsumoto miso. Pair with local Shinshu sake.