High school.
For students anywhere in the country, it is not a place one can easily breeze through.
Every morning, the day begins with early self-study at around five o'clock, and it's even worse for boarding students, who probably don't finish their evening self-study until ten at night.
And basically, there's only one day off each week. By senior year, it gets worse—you might only be allowed to go home once a fortnight, just to take a quick shower, change clothes, and hurry back to continue grinding through practice papers.
Everyone sighs at the unforgettable nature of high school, but no one fondly remembers it, after all, even the daily schedules in prison are more humane than those of a Grade 12 student.
Under wartime conditions, this would've violated the Geneva Conventions.
But fortunately, everyone is used to it.