The first oral argument in a lawsuit was held at the Fukuoka District Court regarding the 2021 suicide of a 17-year-old boy from the kendo club at Tokai University Fukuoka High School. The family of the deceased student is suing the school's advisor and the Tokai University School Corporation, claiming that a failure to adequately address bullying contributed to the boy's death. The defendants have filed a motion to dismiss the claims. According to the plaintiffs, the school advisor did not take proper action against the bullying that surfaced after the student was targeted, and did not collaborate with anti-bullying organizations, indicating a violation of the duty to ensure safety.