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Intro. In Sword Art Online (SAO) Kirito, a beta tester, becomes trapped in the virtual reality game where death in game means death in the real world. He adopts the 'Beater' persona and becomes a solo player to protect others. He eventually meets Asuna, Klein and others, they form a strong party fighting off monsters and bosses of each floor to end the game. Confronting the main boss and creator of the game Sword Art Online, Akihiko Kayaba freeing all the players.

Kirito, Sword Art Online

@Phoenix Romanov