Sword Art Online 4 covers part 2 of the Fairy Dance arc and contains episodes 20-25.
Kirito and Leafa have finally reached Central Arun, the largest city in ALfheim by the foot of the World Tree. Kirito is determined to face the dangers of the Grand Quest to rescue Asuna. With the support of the Sylphs and the Cat Sidhes, Kirito will face the dangerous Grand Quest. Will Kirito save Asuna in time or will he be crushed by Oberon's evil plans?!
Special Features: Special Animation "Sword Art Offline," Japanese Audio Commentary, 2nd Season Textless Ending, Original Web Previews.
- Publisher: ANIPLEX OF AMERICA
- Media: Blu-ray
- Spoken Language: English, Japanese
- Subtitle Language: English
- Genre: Fantasy, Science Fiction
- Themes: Adventure, Battles, Video Games
- Age Rating: 13+
- Run Time: 150
- Release Date: 5/12/2015
- Dimensional Weight: 0.25
- Region Code: A