Haseo

Haseo (ハセヲ, Hasewo) is a Adept Rogue "Player Killer Killer" and the main protagonist of the .hack//G.U. video game series and the .hack//Roots anime series. He joins the game and he is quickly hunted by player killers until he joins with Ovan of the Twilight Brigade. Ovan eventually disappears, and Shino, Haseo's friend, is placed into a coma by Tri-Edge. Haseo attempts to find power, which leads him to Harald, who gives him power. He eventually tries to face Tri-Edge, though he is completely reset after being data drained.

Haseo then agrees to assist Yata and Pi, two System Administrators in The World R:2, in their efforts to discover the reason behind recent attacks on players and a sudden increase in AIDA activity. Haseo gains an "Avatar" named Skeith by awakening him, acquiring the ability to call Skeith and wield his abilities. His real name is Ryou Misaki, a social outcast who played as the player killer character, Sora, until he was placed into a coma by Skeith and awoke with amnesia.

Source: Wikipedia