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Watch Sword Art Online Season 4 Episode 20 Online

  • 8.2/10
  • COUNTRIES: Japan
  • Subtitles: 日本語

Alice and Asuna head to the World’s End Altar as Kirito confronts Gabriel. Unless he can defeat Gabriel and return to the real world before the maximum-acceleration phase begins, Kirito will have to spend the next 200 years in the Underworld.