Mausu Promotion announced on May 21 that it terminated its contract with voice actor Kazuki Atsumi due to what the agency described as a "serious breach of contract." According to reports from ABEMA Times and Nikkan Sports, Tokyo Metropolitan Police arrested Atsumi for suspected sexual assault of a minor.

The alleged victim is a 15-year-old girl. Police indicated that Atsumi met the girl approximately two years ago while working at a children's home organization.

Atsumi had voice acting credits in several anime productions. His roles included characters in the romance comedy My Dress-Up Darling and the tokusatsu-inspired anime Tojima Wants to Be a Kamen Rider.

The arrest and contract termination represent a significant personnel action within the anime industry. Voice acting agencies in Japan typically maintain strict standards regarding talent conduct, particularly given the public visibility of the profession and the industry's relationship with younger audiences.

The situation underscores ongoing conversations within the entertainment industry about workplace safety and organizational accountability. Mausu Promotion's swift contract termination suggests the agency prioritized separation from the accused talent following the police report.

No further statements have been released by the agency or other parties involved at this time regarding the investigation's status or details.