.hack//roots

Haseo starts playing and experiences PKers (Player Killers). After they kill him, Ovan revives him. Then almost all the players in the world start asking him about Ovan.

Haseo shows obsessive behavior toward Ovan's mysterious guild. He asks around to find more about it. At the end of the episode, he meets Ovan by a portal. Ovan asks Haseo to join his clan. Haseo responds by saying, "I'll think about it."

Haseo is given an invitation to join the Twilight Brigade as well as one to join TaN. After expending a little time with Shino, Haseo makes his decision.

Shino takes Haseo to another Lost Ground, and later do training. SakiSaka gets suspicious about why Haseo joined and why he talked to Gord about the guild. Later Tabby gets pked by Ender.

During a meteor shower, SakiSaka's loyalty is put into question, as Ender attacks he and Tabby. The game experiences glitches, and Haseo displays a new ability when he arrives to help the two.

Due to a series of events, Tabby starts believing Haseo is a messenger for TaN and soon later Haseo leaves the Twilight Brigade. Haseo is then seen by Tabby and Shino talking to a TaN member who called him. .

While investigating the Lost Grounds, Haseo experiences a major glitch in The World. Also, we learn more about the Virus Cores. On a team search with Tabby and SakiSaka, they find common marks in the Lost Grounds, where they had found virus cores. Haseo notices something weird about the lines, and the three mysteriouly vanish (presumably teleported).

Haseo, Tabby, and SakiSaka find out the lines they found are portals. Continuing their search of the Lost Grounds, Tabby and SakiSaka encounter a glitch, while Haseo is confronted by Ender. Haseo notices the multiple colors of the Virus Cores, in comparison to the pillars from one of the Lost Grounds. This news comes as a breakthrough to the Key of the Twilight, as Haseo finds another Virus Core.

The Twilight Brigade attempts to bring together all of the Virus Cores. SakiSaka is given the last Core by Tawalaya, while Gord and B Set show up to help the Twilight Brigade, who are being attacked by TaN. They are then transported to an unknown location, while Ender and her TaN subordinates follow. (Known as "Melee" inside North America.)