I work for one of Japan's largest tech companies and somewhat fit the salaryman description he provides (although I put in no where close to the hours he mentio

I work for one of Japan's largest tech companies and somewhat fit the salaryman description he provides (although I put in no where close to the hours he mentions). The bit about what happens to those who move companies stopped me cold. Is this really accurate for what might happen if somebody jumped from one of these companies to a startup?