Sean Peers, 38, pleaded guilty to sexually assaulting an unconscious woman on 15 September 2024 at Manchester Minshull Street Crown Court, according to The Guardian.
Peers admitted one count of assault by penetration. He had been due to stand trial alongside 11 other men in connection with the case.
The victim was drugged by her husband, who invited other men to abuse her over more than two decades, The Guardian reports.
The guilty plea removes Peers from the trial proceedings. Details about sentencing, the victim's identity, or the circumstances of how the abuse was discovered are not provided in the available material.