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A lot of the story in Swort Art Online: Hollow Fragment revolved around the “Orange player” known as Philia, who encounters Kirito early in the game. This week’s issue of Famitsu reveals that she’ll return in Sword Art Online: Lost Song. [Thanks, Game Jouhou.]
Since Sword art Online: Lost Song tkaes place in ALO (ALfheim Online), Philia will play as a Spriggan race, the same one Kirito is in the VMMORPG, and she’ll have different colored hair as well.
Additionally, the magazine indicates that there will be a giant boss called Hildisvini that appears in the desert, and it’ll be so big that you’ll be able to fight it on land and in mid-air.
Sword Art Online: Lost Song is slated for release in Japan on March 26, 2015 for PlayStation 3 and PlayStation Vita.
