Sword Art Online Extra Edition

Sword Art Online Extra Edition (ソードアート・オンライン Extra Edition) is a special recap episode that aired on December 31, 2013 on Tokyo MX, BS11 and Niconico Douga and featured new footage for the series. The episode was streamed worldwide at midnight (UTC +9) on January 1, 2014 on Crunchyroll and Daisuki. This episode features a new theme song called Niji no Oto, sung by Aoi Eir.

Synopsis
To fulfill Yui's wish of seeing a whale, Kirito accepts an underwater quest, but they find out that Leafa - Suguha has a difficult time dealing with water. Therefore, Asuna and the girls start swimming training for Suguha. Meanwhile, Kirito comes in contact with someone...

Named Monsters

 * Krakken
 * Armachthys

Named NPCs

 * Nerakk (Kraken's NPC form)
 * Leviathan the Sea Lord

Location

 * SAO Survivor School
 * Turle Island
 * Yggdrasil City
 * An undersea dungeon in ALO to the south of Swilvane