In the world of Egg Boys, an ancient and mysterious force lingers around an abandoned town. Whenever midnight falls, green mist wells up from the ground, entangling sinners and victims alike into a judgment game created by it. Amidst endless chase and escape, everyone is forced to face the truth. In the judgment game, victims are endowed with powerful chasing abilities, transforming into "Heartbreak Figurines," while perpetrators and bystanders become "Survivors," who must activate the steam furnaces scattered across the scene and open the escape door to break free from this round of judgment.