In ancient times, humanity mastered the "Power of Lines," allowing people to directly manipulate the world's laws and build a dazzling civilization. But after an event known as the "Great Silence," everyone's ability to perceive lines was sealed away completely, and civilization fell back millions of years overnight.
Now, the world is shrouded in the illusion of being "without magic," and ordinary people believe history spans only a few thousand years. But a small group knows the truth. They secretly preserve and wield the Power of Lines, making them the world's true rulers.