The Golden Prince was the richest man in the galaxy; he is said to have owned 99.99% of money in it. But he wasn't happy about it; it wasn't enough. He still could not eat an apple, and keep it. When you buy an apple, you must part with something, like a coin. So you lose it; and therefore money approaches its apex when it is as close to nothingness as possible. But he saw his failure in realizing that pure nothingness is impossible. So he dedicated his efforts into breaking to the other side of nothingness, into the area of Negative Existence. It is unknown what black magics he used, but his efforts bore fruit. And thus he created the legendary Black Souvereign; a coin which, the more you spend it, the more you have of it.