Su Jingyao was reborn as a sophomore in high school. When she looked at the desk full of test papers, she realized what a stupid waste her previous life was - her natural talent in science had long been cast down by laziness.
Her classmate Jiang Xu was a cold and arrogant academic master who always exposed her "little tricks", but would secretly hand over notes with magnetic lines drawn on them; he called her "Sister Jing" and "Brother Yao", and there was a care hidden in his venomous tongue that he didn't even notice.
This time, she has to grasp the 452-day countdown: to complete the rusty knowledge, get rid of the rotten love, and to transform the hard-spoken and soft-hearted academic master from "the morning star seen from a distance" to "the person who stays with me day and night."
The rebirth of the arrogant royal sister counterattacked, but she met the cold and fierce academic master's secret protection. In the youth where the two sides ran in both directions, regrets became the prelude to reunion.
