Accountant Lu Weishuang transmigrates into the Demonic Ancestor of Youhuang Ravine. Just as she wakes up from the ten-thousand-year mystic ice coffin, she encounters a righteous siege. With zero cultivation, she can only rely on nine years of compulsory education to cope. Using extreme cold ice to create fog, glazed stone to gather light and repel enemies, subduing secret agents with breath freshener, scaring away the mighty Sima Ce with physics knowledge, she is mistakenly revered as an unfathomable supreme powerhouse by her disciples. Even the righteous sword god bows into her sect, and the Myriad Treasures Alliance also show favor one after another, but she just wants to run away and go home, yet amidst everyone's overthinking and the black cat's divine assistance, she is forced to start a hardcore journey of unifying the cultivation world.