Yes
indeed a wake up calls to proprietary schools language schools.
Thanks to a valued contributor who is fluent in Japanese and proficient
in English for finding this article and providing an English summary.
In this Japanese article, http://headlines.yahoo.co.jp/hl?a=20141106-00000011-asahi-soci it is revealed that a 22 years old woman working at proprietary chain school, Amity committed suicide due to working approx. 82 hours per month at home (overtime w/o pay) making material for English lessons. This was work that was being done outside of what these chain schools consider "after normal contact hours". "Contact hours" is a term used in the business explaining that payment will be for contact in the classroom. According to this article, this Japanese woman became depressed and jumped off from her apartment building. In addition to all the extra hours that she was doing at home, she was doing some overtime at school as well. A total of 111 hours per month.
By viewing the link above, you will see the high quality of the material she was making. Another source in this article makes the same thing and it varies but they take about 29 sec to 9min 26 sec to complete one material.
Subsequently, a Japanese court has decided this as a work related death. The contributor went on to mention that this should be a wake up call to other proprietary language schools.
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