In 1949, self-taught archaeologist Tadahiro Aizawa embarks on a quest for the horns of a mythical mountain-dwelling beast, believing that they will net him the fortune he needs to excavate stone fragments he believes to be human relics from ten-thousand-year-old deposits of red clay.
The year is 1949. While digging in ten-thousand-year-old red clay deposits, amateur archaeologist Aizawa discovers stone fragments that he believes to be the relics of ancient humans. But in the postwar construction boom, even red clay is in demand as a building material. Seeking funds for his work, Aizawa travels to a sacred mountain to hunt for the horn of a mythical beast known as “Four Eyes.”