Set a few years before *Bubblegum Crisis Tokyo 2040*, *A.D. Police* follows the special police division of Mega‑Tokyo tasked with keeping rogue Boomers under control. Officer Kenji Sasaki faces a major dilemma when another partner is lost to a rabid Boomer. The next day, after being sent off‑duty, he is assigned a new partner: German cop Hans Kleif. Ironically, Kenji had sucker‑punched Hans at a bar the night before. In addition to the daily challenges of managing Boomers, Kenji must learn to adjust to working with his new partner.