Shokasonjuku Academy was a private school headed by Yoshida Shōin, a scholar of military science of the Hagi Domain. It is a small one-story wooden house of 50㎡ with a tiled roof, divided into a lecture room of 8 mats (13.2㎡) and a waiting room of 10.5 mats (16.5㎡). He started giving lectures to his students in 1856, then moved to the extant schoolhouse in 1857. Takasugi Shinsaku and Itō Hirobumi were also students of this academy, and many talented graduates who played important roles in the industrialization of Japan studied at this academy.