I can confirm this. I taught English in Japan, and I lasted only half a school year. The work culture is so toxic. You are expected to stay and work overtime for no extra pay. Plus everyone is extremely polite in your face, but will snitch on you behind your back worse than cacs. Also, the drinking and cigarettes are way more rampant there than here. They had these work parties, which you were also expected to attend. All of these teachers would get sloppy drunk, and it was fully expected. It is also extremely commonplace to see salarymen passed out on the train, or in the street, in their business suits.