Demyx, the Melodious Nocturne is Rank IX within the original Organization XIII and a reserve member of the real Organization XIII. He controls water, and uses his weapon, the sitar, as a musical instrument to make water fight for him in battle. He.. Demyx is a playable character in Mission Mode in Kingdom Hearts 358/2 Days. Despite his destruction, Demyx was brought back to serve as a member of the real Organization XIII, although he was soon demoted into a reserve member following the completion of the Replica Program.
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![Demyx Kingdom Hearts III [XPS] by LexaKiness on DeviantArt](https://images-wixmp-ed30a86b8c4ca887773594c2.wixmp.com/i/69b15a52-afb5-4ff6-8537-99f007df58cc/ddg2l4y-86dd53f9-3b75-467d-ad3c-032a916371e8.png/v1/fill/w_774,h_1032,q_70,strp/demyx___kingdom_hearts_iii____xps__by_lexakiness_ddg2l4y-pre.jpg "Demyx Kingdom Hearts III [XPS] by LexaKiness on DeviantArt")
Demyx is fought as a boss in Kingdom Hearts II and Kingdom Hearts Union χ. He attacks Sora and his allies in the Underworld, as well as in Hollow Bastion during the Battle of the 1000 Heartless. He can be fought again in a data rematch in Kingdom.. Demyx is fought as a boss in Kingdom Hearts II and Kingdom Hearts II Final Mix. He attacks Sora and his allies in the Underworld, as well as in Hollow Bastion during the Battle of the 1000 Heartless. In Kingdom Hearts II Final Mix a Replica Data version of Demyx can be fought at the Castle Gate as well. List of attacks Demyx summons 100 water forms that are to be defeated within a time limit.