Ai Panpan, a renting house exam preparer, was studying the questions until his vision went dark. Then he opened his eyes and transformed into the bottom elf freshman number 777 of Lingyu College.
Learning magic relies on talent and aura, and she relies on the tests and theories engraved into DNA: number pattern analysis is data analysis, mathematical deduction is quantitative relationships, logical tracing is judgment and reasoning, eloquence is verbal understanding, and even literary and spiritual condensation is theory.
While others stayed up all night memorizing magic formulas, she used truncation and direct division to solve numerical problems in seconds; while others were in a hurry in actual combat, she used statistical logic to predict the trajectory of the Shadow Erosion Beast. She stunned the audience in the first class, and she counterattacked from the last number to become the dark horse of the college.
She gets acquainted with Nian An, a young girl who is looking for her missing sister Gu An, meets the cold assistant Ling Ye who carries a secret, and the mysterious senior Min He who was demoted from the Moonlight Realm. She gradually discovers that Gu An's disappearance is not an accident, but is related to the academy's well-kept "Star Track Covenant".
Among the geniuses who made the promise side by side back then, some bear everything silently, some have their identities erased, and some fall from the clouds. A big net covering the entire academy has been quietly spread out. It turns out that the ability to write questions engraved in one's bones is hard currency everywhere.
In this magic battle royale where one-fifth of the players are eliminated every month, Ai Panpan not only has to pass the level with the public exam buff, but also works with his partners to uncover the dusty truth and find his own magical path.