December 8, 2013 School Days.Kotonoha Katsura Android wallpaper.Sekai Saionji.2160×1920 (1) Kotonoha Katsura and Sekai Saionji android anime lock screen background Select wallpaper size2160×1920 (Android Wallpaper 2160×1920)1440×1280 (Android Wallpaper 1440×1280)960×800 (Android Wallpaper 960×800)