A murder-robbery case in Tochigi Prefecture involving ³Ù´Ç°ì³Ü°ù²â¨± quasi-gangster groups, along with the subsequent arrest of six suspects ¡ª four high school boys and a young couple ¡ª is highlighting how ³Ù´Ç°ì³Ü°ù²â¨± groups are adapting to police crackdowns.

Last week, four 16-year-old boys broke into the house of a 69-year-old woman in the prefecture, stealing valuables and stabbing her to death. All four boys have since been arrested, along with a couple in their 20s who are thought to have been handlers who gave the teenagers instructions.

Police believe there might have been involvement by senior members of?³Ù´Ç°ì³Ü°ù²â¨±?groups, which thrive on anonymity and a lack of structure, in orchestrating the scheme.