Kirito jumps into a new VRMMORPG called ALfheim Online (ALO) in search of Asuna, who still hasn't regained consciousness. On his quest to find the World Tree and reach Asuna, he meets a sylph girl named Leafa. A veteran player experienced with the sword, Leafa recognizes that Kirito is motivated by serious circumstances and decides to help him. But...Leafa's identity in the real world is Suguha Kirigaya--Kirito's sister. And it's the glimmer of her beloved brother she sees in Kirito that prompts her to lend him a hand. Now, despite the conflicting interests guiding them on, the pair set off on a journey to the World Tree!!

Reki Kawahara (川原 礫 Kawahara Reki, born August 17, 1974) is the Japanese author of the light novels and manga Sword Art Online and Accel World. Both series have been adapted into anime. He has also written The Isolator (絶対ナル孤独者 Zettainaru Aisorēta), a light novel series which began publishing in print in June 2014, after having been serialised online starting in 2004, and the manga and light novels for the spinoff series Sword Art Online: Progressive. The Sword Art Online series was first published online in 2002, under the pen name Fumio Kunori (九里史生 ). Kawahara entered the first Accel World novel into ASCII Media Works' 15th Dengeki Novel Prize in 2008 and the novel won the Grand Prize. The first novel was published by ASCII Media Works on February 10, 2009 under their Dengeki Bunko imprint. As of October 10, 2015, 19 volumes have been published. After gaining fame from the Dengeki award, Kawahara republished Sword Art Online in print. 16 volumes have been published as of August 2015, as well as four volumes of Sword Art Online: Progressive. ~Bio from Wikipedia, the free encyclopedia. .

v. 1. Aincrad [pt. 1] -- v. 2. Aincrad [pt. 2] -- v. 3. Fairy dance [pt. 1] -- v. 4. Fairy dance [pt. 2] -- v. 5. Phantom bullet [pt. 1] -- v. 6. Phantom bullet [pt. 2] -- v. 7. Mother's rosary -- v. 8. Early and late -- v. 9. Alicization beginning -- v. 10. Alicization running -- v. 11. Alicization turning -- v. 12. Alicization rising v. 13. Alicization dividing -- v. 14. Alicization uniting -- v. 15. Alicization invading -- v. 16. Alicization exploding -- v. 17. Alicization awakening -- v. 18. Alicization lasting -- v. 19. Moon cradle -- v. 25. Unital ring IV -- v. 26. Unital ring V.