Sword Art Online EXTRA EDITION is a special anime that premiered in fall 2013, produced by A-1 Pictures.

About the production: the story comes from a light novel, there is 1 episode of about 101 minutes and its current status is "finished".

Its main genres are action, adventure, fantasy and romance, with themes such as Isekai, Video Games, Virtual World and Male Protagonist.

On AniList, Sword Art Online EXTRA EDITION has an average score of 61%, an average score, and appears on 80,091 users' lists.

The franchise continues in or follows from: Sword Art Online and Sword Art Online II.

Yui wants to see a whale with Kirito during an underwater quest in Alfeim Online. During the quest however, it is revealed Leafa cannot swim. Asuna and the other female characters decide to train Suguha in a real-world pool to help her in ALO. Meanwhile, Kirito meets a certain someone.

Official synopsis from AniList.