System intrusion incidents are occuring in Ameroupe. Enzan and Blues go after the criminal Rat, a net-offender who was just discharged from jail, who is now causing trouble with Asteroid Drillman. Enzan takes on investigation of in intrustion method and finds out there was a person who damaged the bank system by the same means 20 years before the dawn of network society. Enzan visits the net-jail to seek a person who could be connected to Rat and is shocked to find out about a Navi named Colonel being concerned with an incident of those days. - Heat Man