[1] The primary kami enshrined at Susaki Jinja is: Per the Kogo Shūi records dated 807 AD, early during the reign of the legendary Emperor Jimmu, Ame-no-Tomi, landed on the Bōsō Peninsula in what is now the province of Awa in search of fertile land, and established a settlement together with the Inbe clan.

He brought with him a mirror which had been owned by his grandmother, Ama no Hirinome, which he enshrined on Mount Mitarai, and this was the start of the Susaki Shrine.

This was partly due to the patronage of Minamoto no Yoritomo, who landed on the coast close to this shrine after his defeat at the Battle of Ishibashiyama.

Per the Azuma Kagami, he credited the shrine with his safe passage, and for helping rally the local samurai bands of the Bōsō Peninsula to his banner to overthrow the Heike clan.

In the late Edo Period, while surveying the coastline of Edo Bay with the purpose of establishing coastal defenses, the rōjū Matsudaira Sadanobu wrote an account in which he referred to the shine as the "Awa Ichinomiya Susaki Daimyōjin".