There was the 24-year-old insurance saleswoman who got sick of being yelled at when she couldn't reach her quota. Then there's the exhausted designer who clocked 160 hours of monthly overtime. And the ramen noodle shop employee who suffered stress to the point of developing depression.

They all shared a common problem: for one reason or another, they couldn't pluck up the courage to quit. Instead, they asked Exit to make that nerve-wracking call.

"Quitting jobs can be a soul-crushing hassle. We're here to provide a sense of relief by taking on that burden," said Toshiyuki Niino, co-founder of Senshi S LLC, a startup he and childhood friend Yuichiro Okazaki launched last year.