Koga Saburo. A legendary figure from the story Suwa Engi of the Shintoshu, a collection of stories of gods. He wandered into the underworld and eventually made it back to the surface, becoming a snake in the process. He was eventually worshipped at Suwa Shrine as Suwa Daimyojin. This story is believed to be a variation on Take-Minakata of Japanese lore. In that version, as Take-Minakata, he subjugates Mishaguji, but then is defeated by Take-Mikazuchi. He flees overseas, where he transforms into the snake god there before finding his way back to Suwa.