Natsumi Maeda, a 26-year-old day laborer, says she worked at more than 50 companies in the last year and a half.
"I've come to realize companies treat day laborers as a disposable workforce," she said with a sigh.
Maeda, who was once a full-time company employee but quit for health reasons, said that when she was working as a day laborer at a foreign company's warehouse, someone there timed her and her coworkers' performance with a stopwatch.