Koushin Kuyoutou or the Memorial Towers for the Blue Warrior were erected in1672. The Koushin belief of the Edo Period is usually divided into three stages: the first, the middle, and the late. The Memorial Tower of Ensen-ji belongs to the first stage and consequently is of great historical importance. This means Ensen-ji was the center of Koushin belief in the area in those days. The Kyouou Reform (1716-36), a reform movement instituted by the eighth shogun Tokugawa Yoshimune, naturally intensified the pressure on the farmers. It was followed by the "Kyouhou great famine" of 1732-33<, which took a heavy toll of lives through starvation. In such a situation of utmost social unrest, Great Master Shumyou by holding up the light of Buddhist teachings, strived to save people and thereby contributed to the further development of the temple. The relationship between the temple and local people came to be further strengthened around the Bunka and Bunsei eras (1804-30) when Edo culture most flourished, and thus the temple enjoyed wider support among people.

Unfortunately, however, the temple buildings were all destroyed by fire in 1857. The Main Hall, Taishi-do Hall, and priests' living quarters were reconstructed in 1860 by offerings from its followers, but they were far from being comparable to what they were in splendor. In the wake of the Shintoism-Buddhism Separation Edict the anti-Buddhist movement known as "Haibutsu Kishaku"(exterminating Buddhas and abandoning the scriptures) that began in the early Meiji Period (1867-1912), the temple then had to go through hard times of decline. With Great Master Eison's assumption of office as head priest of the temple, the followers joined forces in an all-out effort to protect the temple. The temple fortunately escaped the ravages of air raids during World War II and continued to preach the teachings of Buddha even in the postwar period of social and spiritual disorder. Thanks to the offerings and labor service of the parishioners, large repairs of the Taishi-do Hall corridor were carried out in 1951 in commemoration of the 1330th anniversary of Crown Prince Shoutoku's death. Then the Main Hall was repaired on a large scale and the graveyard was improved in 1964, and the Taishi-do Hall roof was repaired in 1969. In the Heisei era that began in 1989, a series of construction and repair projects followed, which include the construction of the Taishi Assembly Hall, the move to a new site of the Taishi-do Hall, the construction of the Taishi Assembly Hall Annex (1996), and the refurbishment of the Main Hall (1996). Thus Ensen-ji has kept the Lamp of the Dharma burning ever since its foundation and has remained "a spiritual shelter" for its parishioners. The temple is designated as No. 51 of the Eighty-eight Holy Places of Tamagawa.