Yuki Satomi is an antagonist but later protagonist of the A.D. Police: To Protect and Serve series. She is introduced as a nurse that helps the doctor look over Hans Kleif when he first arrives in Tokyo. It is later revealed that she is a high-ranking scientist at Genom who was assigned to keep an eye on Hans, one of Genom's first biologically fused boomers.

Hans takes a liking to her immediately and starts to flirt with her, but she turns down his advances. Eventually she fell in love with him, regretting the fact that she was hiding what Hans was from him. When Hans is kidnapped in episode 12, Satomi tells Kenji where Hans is and gets him past Genom's security.