Lin Chen, a bad student who only scored 70 points in the Gaokao math exam, wakes up and is reborn back to the day of the senior year zero mock exam. In his past life, he got stuck at the passing line and collapsed all the way, ultimately missing out on his ideal university. This time, he stubbornly tackles his wrong question notebook, makes up foundations, categorizes question types, practices calculations, controls his rhythm, and turns every wrong question into a stepping stone for score improvement. From 70 points to 123 points, nobody believed that the former bottom student actually relied on a set of wrong question classification methods to complete the most stunning counterattack against the wind in senior year.