In 2018, Business Insider Japan surveyed 488 young employees about overtime. One respondent wrote: Teiji wa 5-ji han da ga, teiji ni kaeru mono nado inai tame hayaku kaerizurai. The working day ends at 5:30, but nobody goes home at 5:30, so it is hard to leave early.
Another wrote that the idea has spread that one should stay at work while others are too busy to go home, even when there is nothing to help with.