Shinichi Sakurai is a junior high school graduate who works for a mid-sized real estate company. His wife, Kanako, is also a junior high school graduate, and they are blessed with a daughter - Kaori. Even though the family isn't wealthy, they live happily together.
One day, however, Kaori receives the horrific result she scored on a nationwide exam. "Will my daughter be just a junior high school graduate as well?" Shinichi asks. After deciding to send Kaori to an elite school, worried Shinichi soon realizes his daughter will be in the bottom class in a cram school which makes it impossible for her to pass the school entrance exam.
Shinichi names the study room at home as "My cram school" and studies together with Kaori to make a way for her to enter a competitive school.
「下克上受験」は中卒の夫婦が進学塾などの力を借りずに娘の中学受験に挑戦する物語。
実話をもとにしたブログは自費出版、出版社からの書籍化を経由してドラマ化まで「下克上」を成し遂げた。
以真實故事為原型,講述了因學歷不高而吃過很多苦的主人公櫻井信一與女兒齊心協力準備精英中學入學考試的故事。