Un-aired 11th episode of the TV series that's included in the Blu-ray.

Recovery of an MMO Junkie / Moriko Logs In to Fruits de Mer:
When Moriko's computer breaks down, she asks for help from a certain someone to buy a new one. Before even realizing it, she's agreed to have that person over to her place to build the PC itself! Who's coming over?! Will Moriko successfully clear the "Invite a Guest Over" quest?!

(Source: Crunchyroll)