Set one year after the main TV anime, this is their post-apocalyptic tale depicted in a one-night-only live reading and live performance. The complete version of "Reading Drama "ACCA: 13-ku Kansatsu-ka Regards," performed on November 8, 2020 at Maihama Amphitheater added with footage from the OVA "ACCA: 13-ku Kansatsu-ka Regards" released on DVD.