Faced with his son's collapsing Olympiad math homework, talk show writer Li Geng decides to deconstruct boring math problems by drawing comics and delivering punchlines. This alternative tutoring meets strong opposition from his wife Zhao Qian and severe questioning from the head teacher, and the son even faces the crisis of being sent into a devil sprint cram school. To save the child's childhood and learning interest, Li Geng makes a wager, determined to conquer the diagnostic exam difficulties with comedy logic. Facing the profit-seeking cram school boss, this father and son vow to complete the hard-core math challenge on stage, shattering the shackles of cramming education with laughter.