The abyss invades, and all people change classes. 18-year-old Lin Chen is pinned with high hopes at the awakening ceremony, yet the natal soul artifact he awakens is a grey, tattered ancient brick, reducing him to the laughingstock of the entire grade. But he knows it himself—this brick is strong, so strong it cannot be detected. Others treat it as waste, while Lin Chen treats it as his trump card—sweeping dungeons, gathering abyss origins, and suppressing all the way. Until at the national tournament, that brick shines with golden light and slays a level-seven abyss beast with a single brick, leaving the entire arena in dead silence. No one knows what it actually is, and only Lin Chen understands—this is the starting point of his saving all humanity.