Sword Art Online 2 Episode 21 Impression
On this episode, the Sleeping Knights fight against a guild along with Kirito and then fights the floor's boss. Later, Asuna and the party celebrates.
Pretty much, it was cool to see the action along with Yuuki and her guild having a secret. Also Kirito making a guest appearance was nice. Now I can't wait to see the Sleeping Knights reveal their secret soon (which I already know). Overall, cool action episode.
Conclusion: Cool action episode.