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Japan confronts the dark side of its teenagers’ AI addiction

An assault case involving five Japanese girls who used AI to decide how much money to demand from a victim has exposed a disturbing pattern of adolescents turning to AI for guidance in criminal acts. A second case involving a baseball team manager's arrest for assaulting his daughter has further focused Japan's attention on AI's social impact.

read1 min views1 publishedJun 21, 2026
Japan confronts the dark side of its teenagers’ AI addiction
Image: Scmp (auto-discovered)

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An assault case involving five Japanese girls has cast a spotlight on the consequences of AI misuse

4-MIN READ4-MIN She was among five girls in

Japanbelieved to have beaten a boy so severely that he required hospital treatment. Yet her most pressing concern was how much money the group should demand from him. To find an answer, she turned toartificial intelligence.The alleged assault took place in January in Hachioji, a city in western Greater Tokyo.

For experts, the case has exposed a disturbing pattern: Japanese adolescents instinctively turning to AI to guide their actions, including criminal ones, rather than exercising their own judgment or restraint. Advertisement

Police said the boy, a high-school student, suffered serious injuries, with five girls accused of carrying out the attack.

But it took a second, higher-profile case of alleged violence, this time involving a sporting celebrity, to focus Japan’s attention on AI’s far-reaching social impact.

Shinnosuke Abe, 47, manager of the storied Yomiuri Giants baseball team, was arrested at his Tokyo home on May 25 on suspicion of assaulting his 18-year-old daughter. The team announced his resignation

[the following day](https://www.scmp.com/sport/other-sport/article/3354830/top-japan-baseball-boss-arrested-over-alleged-assault-teen-daughter?module=inline&pgtype=article).Advertisement

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