Sessha Usa-gu Honden (The main building of Usa-gu shrine, auxiliary shrine) - Its roof is featured with Hiyoshi design like the main buildings of Nishi Hon-gu shrine and Higashi Hon-gu shrine.
摂社宇佐宮本殿-西本宮本殿、東本宮本殿と同様、屋根は日吉造である。