Senbon Matsubara  

A Lot of Pine Wood, せんぼんまつばら, せんぼんまつばら 川と生きる少年たち, 1000 Pine Groves, One Thousand Pine Groves

In 1753, Senbon Matsubara in Shizuoka experienced severe floods. As a result, its residents collaborated on measures to prevent future flooding along the Kiso, Nagara, and Yuhi rivers. Meanwhile, the people of Satsuma (Kumamoto Prefecture) faced significant difficulties due to government orders compelling them to perform labor. This subtle hint suggests that the resentment simmering beneath the surface would eventually erupt into full-blown rebellion in the following century.