Oyaku ni Tachitou Gozaimasu

Shizu, who married into an inn in Shinagawa-juku, was frustrated that she wasn't allowed to be involved in the inn's business. At that time, the advance party of the Satsuma daimyo, Akamatsu, came to inspect the inn, causing chaos for everyone at the inn. Meanwhile, Akamatsu mistakes Shizu for a prostitute and rapes her. Dazed by the cock that is far larger than her husband's, Shizu begins to move her hips aggressively, thinking that she can be of use to the inn if she satisfies Akamatsu.

(Source: Fanza, translated)

Note: Published in Comic Go Ranshin Vol.3