Meitantei Conan: Hannin no Hanzawa-san

A town of crime, Beika Town. A mysterious Dark Shadow descends onto this town that ranks among the highest crime rates in the world. His (or her?) goal is to kill a “certain man.” That key player in Detective Conan is now a protagonist! Clad in tights and possessing a pure intellect, this person’s name is… the (pseudonymous) Culprit Hanzawa!
(Source: Netflix)