s a Nobody, Demyx lacks a heart, and is therefore incapable of feeling emotions. In spite of this, Demyx behaves as if does possess a heart, an act which Xaldin criticizes him for. As a result, Demyx has a very casual and lazy disposition. He is also cowardly, running from many encounters, including ones with Hades and Sora; and in Kingdom Hearts 358/2 Days, he claims that he finds Larxene quite frightening and also refuses to go searching for a giant Heartless alone.