In October 1999, 19 Chinese trainees came to the Takefu city office pleading for help. In their first year in Japan as interns, the women had been promised ¥50,000 a month, but scraped by on ¥10,000. The next year, as technical trainees, they should have received ¥115,000 a month. After health insurance, pension, rent, forced "savings" and administrative fees for the staffing agency in China were deducted, what they got was ¥15,000. The women walked for five hours from their workshop in the mountains of Fukui Prefecture to talk with the director of their placement organization at his home. Instead of receiving answers, they were turned away with harsh words — and even blows.

The incident was discussed in the Diet and became a symbol of the profound problems with the trainee system. Shortly afterwards, citizens' groups formed to protect the rights of trainees and organizations already working to protect foreigners' rights found a new focus. More than 10 years later, leaders of these groups say they have seen some positive changes, but abuses of the system are still endemic.

Started in 1993, the aim of the Technical Intern Training Program is to "provide training in technical skills, technology (and) knowledge" to workers from developing countries, according to the Japan International Training Cooperation Organization (JITCO), which oversees the program. But in practice, say advocacy groups, the majority of both trainees and the companies who accept them think of the relationship primarily as regular employment. A convoluted placement system complicates the situation: Between the trainees — the majority of whom come from China — and the workplace where they end up, there are usually at least three intermediary organizations involved, in Japan and the participants' native country.