YS Online is stemmed from the famous YS series originally developed by Falcom, a Japanese developer. CJ Internet Game Studio and Nihon Falcom have teamed up to convert the famous YS series to an online game which is brought to you by Key To Play. YS Online, with the unique worldview and action features inherited from the original YS series, is the most expected MMORPG of the year. YS Online boasts a wide range of MMORPG features, with its fast-paced and flashy action combat system.