In the dark night where gods and night watchmen intertwine, a mysterious girl quietly arrives. She is wearing a double-ringed bun, her eyes are charming, but she holds the power of destruction at her fingertips - Su Wanqing, the "little girl selling nuclear bombs", uses memory and emotion as currency to sell the ultimate warmth to the world. When the rational genius An Qingyu meets her, a fatal game on the edge of transaction and redemption begins. If nuclear bombs fail to sell, the world will usher in the "automatic delivery" of twenty 10-gigaton equivalent nuclear bombs; if the deal is reached, can mortals bear the price of the Shenxu Contract? This is a duel between cold rules and the warmth of humanity. In the grand chess game of killing gods, she is both a variable and the only fire that starts a prairie fire.