Taking over Nata Valley, one region at a time.
However, you might also transfer villagers from one of your existing villages to the new one.
How To Transfer Villagers In Sengoku Dynasty
As your population grows,their needs will also increasedrastically.
Doing so will significantlyreduce the consumption of goods, allowing the satisfaction level of the villagers to grow.
The family quest in Sengoku Dynasty lets you settle down in the Nata Valley.