Six former members of a Waseda University social club pleaded guilty Wednesday to gang raping female students in 2001 and earlier this year.
But the club's former leader -- believed to be the central figure in these cases -- insists that the rapes were not premeditated.
During the first session of their trial at the Tokyo District Court, three former members of the Super Free club admitted that they had raped a 19-year-old college student in December 2001, while five admitted raping a 20-year-old college student in May this year.