In the apocalypse of the future, deformed Cthulhu creatures are devouring cities, and humans are lingering in the ruins. The favored son of heaven, Lin Che, awakened the "Scarlet Badge" and could analyze the weaknesses of monsters, but was framed by her evil stepmother and family enemies, and almost died. The arrogant childhood sweetheart Xia Wanxing never leaves him and accompanies him to fight his way out of the siege.
The yandere villain pursues her with paranoia, the cunning opponent sets up a deadly trap, and the stepmother hides a conspiracy to subvert humanity. Lin Che carried the badge to sweep away the aberrant monsters, dismantle the conspiracy, and kill the enemies. In the strange fog of Cthulhu, she used a human body to create an apocalyptic legend, and in the blood and fire, she melted Qingmei's arrogant defense.
