As the Witch of Gluttony, Daphne's reason for living is to feel full, causing her to care about the amount more than taste. She was also seen repeatedly vomiting out food and eating it again, although she seems to indulge in such acts only when there's no more food left. If that option fails, she will resort to eating objects she can chew, like rugs, curtains, clothes, etc. In an effort to try and get rid of the never ending hunger, she created the Demon Beasts but soon after lost control of them and accidentally released them into the world. Despite the threat the Demon Beasts present, they were created with a positive mindset - to save the world from hunger. Her view on hunger is bizarre and weird, stating that those who try to eat others should be wary of being eaten themselves, therefore she was unable to comprehend Subaru's counterarguments to her theory. Daphne's speech is described as incoherent and surreal. Talking with her eye to eye is practically impossible for anyone who isn't suffering from extreme hunger, as she does not understand the basic human mindset and values. Her only goal is to save the world and herself from hunger, no matter the cost. Subaru described her mentality as animalistic and not something a person should possess. Her manner of speech is usually cheerful and childish, indicating her age. She also likes to give nicknames to people, such as Subarun to Subaru, Dna Dna to Echidna, Met Met to Sekhmet, Ner Ner to Minerva, Mila Mila to Carmilla, and Tyu Tyu to Typhon. She regards Gluttony as the most important craving in life, stating a person is unable to live without eating. She rarely shows emotions or the will for basic human functions apart from indulging in her Gluttony.