Mimiru (ミミル, Mimiru) is a female Heavy Blade and a main character in .hack//SIGN. She is the first character to find Tsukasa after he wakes up in the Dungeon, and ever since then, she tries to contact him, although when she finds him she usually ends up arguing with him. She is also seen spending a lot of time with Bear trying to solve the mystery of Tsukasa's inability to log out.