Hikari Netto always wanted his own Net Navi, especially after a humiliating lose to a school friend, Dekao and his Navi, Gutsman. Hikari Netto is given a net navi from his father. He thinks the new navi, called Rockman is weak. There is a rash of fires thought to be caused by viruses which Rockman easily takes care of. Later during a battle with Dekao`s Gutsman another fire breaks out at his friend`s Meiru`s house. Rockman goes to save battle the virus but finds a Net Navi behind the fire. After a battle Netto finds that Rockman is more powerful then he realized.