Story
OVA by Minami Machi Bugyousho — Summer 1988, 1 episode, Finished.
One night at a rock concert, a mysterious man dies while leaving a floppy disc with a member of the Rutz Detective Agency. Soon they realize the disk contains information about a deadly new weapon under development. The heroes become involved in a game of political subterfuge and military espionage, hot on the trail of the killer!
Synopsis via AniList (English).
