圖片來源:
https://www.deviantart.com/kaz-kirigiri/gallery/62273884/Sword-Art-Online-Wallpapers
http://www.frandroid.com/android/applications/jeux-android-applications/407528_sword-art-online-memory-defrag-laction-rpg-sur-mobile-debarque-en-france
https://saomd.imgur.com/