on the june 13th, a 48-year-old father of two named im gwang soo suffered a massive brain hemorrhagearrington: lee seong wook worked side by side with gwang soo. he knows how easily it could have been him. ♪♪♪ carrington: like gwang soo, seong wook is in his 40s with two kids and works around 90 hours a week. his workload means he rarely sees his children. carrington: after sorting packages all morning, it's afternoon before he can make his first delivery. ♪♪♪ lee: whoa, whoa, whoa, whoa, whoa. ♪♪♪ ♪♪♪ ♪♪♪ ♪♪♪ ♪♪♪ ♪♪♪ ♪♪♪ ♪♪♪ carrington: just before 9 p.m., after 14 hours on the job, seong wook gets an automated message from the company. carrington: seong wook keeps working. it'll take at least another hour to finish. for the fresh food he delivers after 9 p.m., he'll pay penalties. carrington: that's a fine of roughly $60 for an item he's paid less than $1 to deliver. carrington: seong wook finally wraps up around 11 p.m. for a 16-hour day, he's earned around $180. that's before he's paid tax, his petrol, or phone bills, or any penalties for late deliveries. [children laughing] ♪♪♪