A disturbing case revolves around a death in Tochigi, where a particular kind of "multi-model dark part-time job" may be involved. This type of shadow economy, believed to be a modus operandi linked to a homicide, is under investigation as the authorities strive to peel the layers off organized crime. Serving as an opaque employment model, it draws in young adults under the guise of legitimate work but deals with illegal activities.

In Japan, such shadow jobs pose a pressing issue, especially among economically disadvantaged and misguided youth. Given the stringent Japanese employment system, the easier access and quick pay of these underground jobs often lure the unsuspecting or desperate individuals. The societal value placed on gainful employment and the stigma toward unemployment can push young individuals into the underground economy.

Similar issues and situations occur in numerous parts of the world, including the US and EU, where underground economies exist. While the US and EU may have more robust social safety nets and opportunities for legitimate employment, the difficulty of law enforcement in infiltrating these underground networks remains a common challenge.