This article is about Guardian, an episode of .hack//SIGN. For the dumbbell shaped monster prominently featured in .hack//SIGN, see Guardian.
Guardian is the second episode of .hack//SIGN.
Mimiru and Bear are worried as Tsukasa is unable to logout of the game. The Crimson Knights look upon Tsukasa as an illegal character and are out to capture him. He arranges to meet with Mimiru and Bear to show them his guardian monster.