TOKYO (TR) – A 23-year-old Keio University student accused of theft and fraud made her first court appearance at the Tokyo District Court on November 9.
Karen Niizawa, a senior at the university’s Faculty of Policy Management, allegedly exploiting her part-time job to steal from gym members, reports Zakzak (Nov. 9).
was arrested in August after allegedly using a master key at a sports facility in Hiroo, Shibuya Ward, to rifle through lockers and steal a 50-year-old customer’s credit card. She is currently accused of using the card to purchase cosmetics worth approximately 14,000 yen.
During the hearing, Niizawa reserved her plea, telling the court, “I understand there will be additional charges, so I would like to speak with my defense attorney once those are filed.”

Access to master key
Prosecutors allege that Niizawa, who had worked at the facility’s reception desk for several years, abused her access to a master key — ordinarily kept for staff use — to open lockers on the third floor. While she has admitted to using the stolen card to buy cosmetics, claiming she did so “impulsively,” she has denied the initial theft, insisting to police that she merely “found the card in the changing room.”
The case has drawn intense public scrutiny, fueled in part by reports in Shukan Bunshun identifying Niizawa’s father as a high-ranking executive at a major global credit card company. Online, critics have dubbed her a member of Japan’s “elite class,” sparking a heated debate regarding her motives and the ease with which she allegedly navigated the facility’s security.
Similar thefts
Police investigations suggest the Hiroo incident may be far from isolated. Authorities are currently looking into a string of similar thefts at the same facility, with total damages estimated at approximately 1 million yen.
Several public figures have since come forward, with some social media users and commentators pointing to the incident as a symptom of a society where lifestyle envy is amplified by social media.
Niizawa, a “returnee” who grew up in New York and graduated from high school in California, entered Keio University through an AO (admissions office) entrance exam and was a member of the university’s competitive ski team.
As the investigation continues, prosecutors have indicated they plan to file additional charges against Shinzawa for the broader pattern of thefts identified by Tokyo Metropolitan Police.




