Tokyo Dark Part-Time Job Home Invasion and Robbery Case (2025)

On March 5, 2025, Kim Sang-ho, a 25-year-old Korean national residing in Japan, forcibly entered a private residence in Tokyo under instructions from an anonymous organizer via a “dark part-time job” scheme. He smashed glass doors, caused property damage, and injured a resident during a struggle while attempting to steal cash and valuables. Kim was also found in possession of a modified handgun, violating strict firearms laws. Subsequent investigation revealed involvement in preparatory acts for another planned robbery, as well as separate fraud and theft offenses committed earlier. The initial charges of building intrusion and property damage were amended to include robbery causing injury, reflecting the violent escalation. The case was handled by the Tokyo District Court under case number Reiwa 6 (Wa) 356, highlighting the transnational dimension with a Korean defendant entangled in Japan's ongoing crime wave driven by encrypted app recruitments.

In November 2025, the Tokyo District Court found the defendant guilty on all counts. He was sentenced to 14 years in prison for robbery causing injury, building intrusion, illegal firearm possession, fraud, and theft. The court ruled that remote instruction did not absolve him of intent, as he was fully aware of the violent nature of the mission.

The central legal dispute concerned the prosecution’s mid-trial amendment of charges from building intrusion and property damage to the more serious robbery causing injury, and whether Kim could be held liable for robbery when he claimed he was merely a low-level executor unaware of the full plan. The defense argued he lacked specific intent to rob, intending only property damage under duress from the recruiter.

The case fueled public alarm over the “yami baito” (dark part-time job) phenomenon, where anonymous recruiters on Telegram or Signal coerce vulnerable individuals into violent crimes. It spurred the National Police Agency to intensify cyber patrols and launch emergency public warnings, while reigniting debate on immigration and the criminal involvement of foreign nationals in Japan’s organized theft rings.