In a world where everyone is connected to the virtual Cyber Network, hackers, viruses and other high-tech crimes are a major problem. A sinister organization named World Three has vowed to destroy the network and take over the world. Lan Hikari is a cheerful fifth grader whose artificial intelligence NetNavigator is the superpowered MegaMan. In and out of the Cyber Network, Lan and MegaMan work to thwart World Three's villainous schemes.

Reads from right to left.