This 800-1000 year old tree is 8.7m in girth and 25m in height, and is depicted as a young sapling in the picture scroll “Kasuga Gongen-genki” from 700 years ago. Another tree grows from the root of the big tree, and is known as “Shinpak” (also called “Ibuki”). A hole has been built into the roof of Naoraiden Hall so as not to hinder the growth of the tree, following the divine decree of Kasuga Taisha to cherish plants.