Hiroshi Araki served as the public relations spokesperson for Aum Shinrikyo (later Aleph) and became one of its primary public figures after the 1995 Tokyo subway sarin attack and the arrest of Shoko Asahara. His role handling media responses and public communication led to his appearance in Tatsuya Mori’s documentaries A (1998) and A2 (2001), both of which follow the group’s internal dynamics and public scrutiny.