Sekiguchi was the place where a water gate called "Ōarai-no-seki" at the Kanda aqueduct was and supplied precious water to the people of Edo. In 1677 (the fifth year of Empō) when the Todō Family conducted repair work of Ōarai-no-seki, it is believed that Matsuo Bashō assisted in the work and later lived in Ryūin-an which is annex to Suijin Shrine and Bashō-an was built after his death. The place around here is famous also for camellias.