Incredibly true. When I worked there, I had to literally sit at my desk until 8pm despite being done with work by 6 simply because 8pm for my office was the “end of working hours.” Then off to a Soju-fueled dinner with coworkers whether you wanted to or not which would often degrade to a session of mandatory fun at the Karaoke. Rinse and repeat. I love Korea, but the work culture can be brutal. Hopefully that has changed a bit.