Reversing Life With Future USB!

Kim Joon-young, an academy instructor with little to rely on beyond his good looks, struggles without a strong academic background or teaching skills. His life changes after he encounters an old man. Joon-young receives a USB containing future releases: national performance evaluations for every middle and high school subject, along with midterm and final exams and the SAT. The device gives him access to material from the future, setting the stage for a reversal in his fortunes.