The Intermezzo title screen.
.hack//Intermezzo is an OVA episode of .hack//SIGN, being the 27th in the series.
The episode occurs after Tsukasa is able to log out. It is about Mimiru and Bear going to a dungeon that was closed down for 2 years. The dungeon has an effect that randomly generates an enemy for each portal. As they descend, Mimiru has a flashback about her unnamed first character two years ago and her adventure here with a player called Mimika to save her unnamed net friend, who descended into that very dangerous dungeon.
Mimiru's first character.
Mimika saves Mimiru's friend from a powerful monster by using a skill that crystallizes the character to cause massize damage against enemies. When Mimiru reaches the Gott Statue with Bear in the present, she sees Mimika immortalized as a crystal statue. It is speculated that Mimiru's name is derived from Mimika's name as a sign of respect.
Mimika as a statue.