There has been a surge in high-skilled workers coming to Japan. There were 458,000 visa holders in the engineering, the humanities and international services category at the end of June last year. That is a 9.4% rise from the end of 2024. This contrasts sharply with the 1.6% decline in workers in the technical intern program in the same period amid tighter regulations. [...] As for specified skilled workers, their employer in Japan or a registered support organization is obligated to provide support, and systems are in place that keep the immigration agency informed of where they are employed. For the higher-skilled professional categories, however, there are no such systems. While this affords workers in this category more freedom, it can also leave them isolated.