A Yuan, a left-behind girl in modern high school, once transformed into an ancient girl, unwilling to be trapped in the back house and live a mediocre life. She tried her best to persuade her family to go to Songshan Academy to study with her younger brother Xu Chengyu. In an academy with strict rules and gatherings of men, she broke the shackles of gender, became crazy about involution, studied diligently, and faced criticism and challenges; her teenage brother also transformed and grew up under the influence of her sister. They walked side by side with their classmates, searched for the way forward in the texts of classics and history, gained a firm foothold in the prejudices of the world, and embarked on a different path to study in ancient times.
