Miki and Naomi are a pair of assassins and friends known as Crime Mate. They are tasked with dealing with a biological weapons and arms dealer named Ramon. Crime Mate is a bonus 15 minute special that was made for the DVD release.
Watch Monkey Punch Manga Katsudou Dai Shashin: Crime Mate Special episode 1 online — subbed and dubbed, with automatic AniList / MyAnimeList progress sync.