In 1698 (the eleventh year of Genroku), Naitō Shinjuku, built on the site of what was formerly a villa of Naitō Wakasa-no-kami of the Shinshū Takatō domain, became the first post station on the Kōshū Highway. The Kōshū Highway was used to transport minerals taken from the regions of Tama and Chichibu and agricultural products and it thrived with many cattle and horses coming and going.