Takashi Katori is a huge fan of online games, and so is his American friend Sarah. However, one of their RPGs goes too far when their virtual world and the Lezarion robot that Takashi created for the game somehow merge with reality. Takashi gets caught, but later the Earth Government discovers that an evil scientist from the Moon is hacking into virtual worlds and security, forcing Takashi to pilot the Lezarion and protect the Earth...
