[Most of this info can be found from ".hack//GU THE WORLD" magazines]
HaseoReal age:17
Real name:Misaki Ryou[Age and name confirmed from the .hack//G.U. Character Fan Book.]
Class type:Multi Weapon - English name: Adept Rogue
Personality:He is considered a lone-wolf type,short-tempered,and one to jump to conclusions so suddenly.The reason he is considered a "loner" is due to an incident and being abandoned by two people that he used to consider friends in The World,after this he becomes very cautious of who he deals with.
Purpose of playing "The World":
To get revenge on an illegal entity inside the game,named TriEdge,for the loss of a player he had some connection,that Player Character is named,Shino.
His history in "The World":
According to Roots,Haseo mentions he got interested in this game,by a friend.When Haseo started playing The World,he had a very harsh introduction into the game where he was attacked by a PKer[Player Killer],but was soon saved by a Steam Gunner class type by the name of Ovan.Allowing Haseo to be a part of a guild called the "Twilight Brigade" which involved him,Shino,Ovan,and others.Their main focus in that group was to find the "Key of the Twilight".Unfortunately the group disbanded right after Shino was attacked by TriEdge,leaving Haseo alone to himself,allowing his next goal to be revenge.
This is what caused him to become a "PKK"[Player Killer Killer],in pursuit of finding information on TriEdge,while also allowing him to be given the title "The Terror of Death".
As you play through the game as Haseo,he will go through some changes as he continues his search through The World,mainly changes with his outer appearance.
Second form:
This is Haseo's second form,called the "Brandish"[English name:Edge Punisher],obtained during Vol.1 Saitan after completing his job extension quest.Which is part of his class,the Multi Weapon class,he is able to have a chainsaw sword with this form unlocked.
This is Haseo's third form,"Flicker".In the anime,episode 18 "Limit",Haseo obtains this form after completing the event "Painful Forest".This form has been seen around in the trailers and its the form he starts off with at the beginning of Vol.1.,however,he looses it shortly.It is possible to reclaim this form in Vol.2 after completing another job extension quest.Haseo is able to wield a scythe like weapon once this form is unlocked.
This is Haseo's last and final form,called the "Xth form".He is able to aquire Twin guns,which are guns but have blades attached to them.Unlike the other forms from the previous volumes,this one is obtained quite differently,there is no job quest involved,but it is considered a Job Extension.The Xth form is an illegal power from the result of fusing the force of will from Haseo and his Epitaph's power from Skeith. ://back