Udatsu Townscape — Edo Merchant District

**Architectural highlights:** Udatsu are L-shaped walls extending above the roofline between adjacent houses, originally preventing fire spread but evolved into decorative status symbols — wealthier merchants built taller, more ornate udatsu. The Yoshida Family Residence (吉田家住宅) is the largest preserved merchant house, with a sprawling interior, courtyard garden, and original indigo storage rooms open for touring. **Indigo merchant wealth:** During the Edo period, Awa indigo (see separate entry) was Japan's premium natural dye. Mima's location along the Yoshino River allowed merchants to ship indigo cakes (sukumo) nationwide. The phrase 'tono-sama yori asegi-ya' ('indigo merchants richer than feudal lords') reflects their prosperity. Wealth is visible in the grand architecture, decorative details, and multi-story warehouses (kura). **Quiet exploration:** Unlike touristy Kurashiki or Kanazawa, Mima's Udatsu district sees few visitors — you can walk the street in near-solitude, giving it authentic frozen-in-time atmosphere. Several machiya operate as cafes serving local sweets (和菓子, wagashi) and green tea in tatami rooms (¥500–800). **Practical timing:** Budget 1.5–2 hours to walk the street, tour one mansion, and stop at a cafe. Best combined with Awa Indigo Museum visit (20 min away) for comprehensive indigo culture understanding. Autumn (November) sees few crowds and pleasant weather.