XXXX (pronounced X Fourth) is a manga serialized in the monthly magazine .hack//G.U.: The World. Based on the original concept of Hiroshi Matsuyama and written/illustrated by Megane Kikuya, the manga retells the story of the MMORPG simulating .hack// videogame series. The manga shows the events within The World from the point of view of the hero Kite, as he ventures through The World to find a cure for his friend Orca, who has fallen into a coma after being Data Drained by Skeith.