The Internet——another world where 6 billion people, accounting for 73% of the world's population, are connected. Shun Enjou, who was a popular Idol, was expelled from the entertainment industry due to a certain assault incident and resumed an ordinary high school life. Guided by the PC Club president, Nozomi Nanashino, whom he met by chance, he arrived at the darkness of the Net where malice and desire gather anonymously: the "Cyber World (Underground)". At the bottom of the dim electronic darkness, what will they grasp, and where will they go——...? An "Enjou (flamed)" Idol and "Nanashi (anonymous)" girls lurking in the darkness meet—an irreverent, viewer-discretion-advised cyber youth story, connection start!