Actress Atsuko Takahata delivered a groveling apology Friday for the actions of her adult son, Yuta, who was arrested Tuesday over a sexual assault.

It was a time-honored piece of choreography: a parent apologizing, and the 300 or so reporters and photographers present knowing just what to expect. The actress said that, as a mother, it is her who is partially responsible for her son's actions.

The 22-year-old actor allegedly dragged a hotel worker into his room in Maebashi, Gunma Prefecture, and assaulted her.