It's the year 200X and everyone in Den Tech City is plugged into the Net. But living in cyberspace isn't always fun and games. High-tech crimes and pesky viruses are always a big problem for the authorities. Thank gookness for MegaMan and his NetOperator, Lan Hikari. Together, they do their best to keep their hometown safe from being permanently deleted.
A new force has been unleashed from the darkest, wildest realms of the Net--a menace more dangerous than anything DenTech City has ever faced. What is it? MegaMan himself! Transformed by the mysterious "Beast" program, MegaMan has developed the unwelcome power to turn into a rampaging monster. While Lan's scientist dad searches for a solution, MegaMan and Lan try to deal with MegaMan's beastly new condition...while fighting the world's most powerful NetNavis!
The greatest menace of the Cyber Network has surfaced, and its name it MegaMan - now unable to control his inner beast, he and Lan must find a way to stop his inner darkness from surfacing before he destroys the entire network! Takamisaki will keep young readers guessing with this suspenseful entry. Can Lan's father find a cure, or will MegaMan need to be deleted?!