There was once a legend that could be traced back to three thousand years ago, that is, the ancient Egyptian period. The ancient game is enough to demonstrate the arrival of humans and pharaohs, and it is also a magical ritual that can determine fate. The game at the time was called Mystery Dark Game. Now, a famous boy has uncovered the "Millennium Block" and inherited the dark game. Therefore, he is a boy with two hearts, light and dark, and he is Muto Yugi.