Gekokujo Juken

Sakurai Shinichi is married to Kanako and they have a daughter named Kaori. Both, Shinichi and Kanako received only a middle school-level education. Even though they don't have much money, they are a happy family. At work though, Shinichi experiences the effects of only having a middle school education.
One day, Shinichi sees Kaori’s poor score on a national test. He freaks out and decides to improve Kaori's education. Thus, 41-year-old Shinichi begins studying with Kaori and instructs her for the upcoming middle school entrance exam.