TOKYO - Workaholic Japan has unveiled its first-ever plan to limit overtime, but critics want to give it the boot, saying an "outrageous" 100-hour-a-month cap will do nothing to tackle karoshi, or death from overwork.

Tokyo's bid to ease a national health crisis comes after the top executive at advertising giant Dentsu quit late last year in response to the suicide of a young employee who regularly logged more than 100 hours of overtime a month.

The death of Matsuri Takahashi generated nationwide headlines, prompting the government to come up with a solution to punishing work hours blamed for hundreds of deaths due to strokes, heart attacks and suicides every year.