Hitoshi Tanimura

In order to settle a business dispute, a mob leader murders one of his own teenage sons. The surviving son vows to avenge his brother's death, and organizes his own gang of teenage killers to destroy his father's organization. (imdb)

Teenager Kanemori Kousuke is a secret agent for the international VN spy network. Using his computer hacking skills, he tracks international criminals. Later he goes after Neo-Nazis to the Arctic were they try to raise a U-boat with a sinister secret.