Ren

With architecture mirroring that of Ancient Osaka, Ren is governed by the Minamoto Family, whose fascination with agriculture and farming feed every other nation within Wano. It's known to be the largest area in Wano, with most of the workers living in Castle's governed by their Masters. It's a city where nobles and common born, work in unity for the good the lands that need to be plowed. The rarest herbs, crops, medicines and even wild life can be found in Ren. The current head of the Minamoto Family, is said to have been using technology from the outside world to increase production tenfold, but these are currently just rumours.