Lin Xiaocha, a sophomore high school student, sets a counterattack flag in order to catch up with the top student Lu Xingci, but unexpectedly unlocks the "focus halo" - after turning it on, he can focus on solving questions without any distractions, doubling his learning efficiency! From then on, she went from being a confused person who was distracted in class to being the last one to turn off the lights in the classroom and answer questions, and her ranking in the monthly exams soared. Su Manqi, a wealthy girl who has a crush on Lu Xingci, sees Lin Xiaocha approaching Lu Xingci step by step, making things difficult for her at every turn. Lu Xingci was moved by Lin Xiaocha's enthusiasm and progress. From watching to actively coaching, the two gradually became more and more attached to each other while doing test questions, competitions, and campus activities. In the end, Lin Xiaocha, with her "aura of concentration" and full of love, was admitted to the ideal university with Lu Xingci, completing a double counterattack of studies and love.
