SAIGO-NO-HEATS
A drifter, returned
Here's a map of the region. Fukashi Castle use to stand where Matsumoto Castle stands. One thing I'm still not sure is which side of valley is everyone at.
View attachment 306058
If we're assuming Matsumoto castle is standing in for Fukashi, then I suppose the Shogunate forces would be gathered at the mouth of road 158