"Humans have continually searched for the elements that make up the world, since before the modern era. It is said that in ancient times, the Greeks tried explaining the world with the four elements of wind, fire, water, and earth. And after that, over several millennia, humans added several elements to those four, trying to explain the world with several interpretations such as the five elements, the six elements, the seven elements, the eight elements, and the twelve elements, but they were never able to describe the one sole truth that exists, the `single element'."