A battle breaks out at school! During the commotion, Fumie steals a mysterious piece of data from Amasawa.

The Hackers' Club goes on a metabug expedition over the fringes of surrounding cyberspace lead by Isako.

Isako once again summons an illegal with the help of the Daikoku Hackers. With Yasako and Fumie working on an unrelated case, will the virus take over?

Yasako finds a race of microscopic illegals growing on their faces that are on the brink of destruction. Can Yasako figure out a way to save them?

Yasako searches for the place she met 4423. Afterward, she deduces that the place was a virtual space that was deleted.