The Shokasonjuku Academy(松下村塾) is a small wooden one-storey building with a tiled roof. Originally, the building consisted of one classroom with a tatami floor of 8 mats. Later, students helped to build an extension to the building, adding an area of 10.5 mats.
Yoshida Shoin's uncle Tamaki Bunnoshin opened an academy at his home, which was not far from the current location and named the Shokasonjuku. Kubo Gorozaemon took over and was involved in the education of young people.
In the fourth year of the Ansei era of 1857, on November 5, 28-year-old Yoshida Shoin took over and transferred it from the confined space in his uncle's house to the current location, where he gave lectures. This is the place where Shoin spent one year with the students, until November 29 of the following year, the fifth year of the Ansei era 1858. The Shokasonjuku Academy taught the youths who gathered there that, regardless of their social status, they were Japanese who could take action with determination and pride.