Calyban is a character from The Legend of Zelda: Breath of the Wild. Calyban can be found at the Gerudo Town in the Gerudo Desert region of Hyrule. She seems to have a superhuman ability to consume large quantities of Hydromelons without any side of getting sick. However she is apparently conscious of how people might react to her gluttony and as a result secretly eats them atop the wall of the barracks, carelessly throwing the remains of the Hydromelons she has eaten in a nearby aqueduct.
Related Side Quest
During the Side Quest "The Mystery Polluter", Link finds the Gerudo child Dalia crying as the water she needs to grow her garden is being polluted and her plight convinces Link to investigate the pollutions source. He tracks the source back to Calyban who has been carelessly polluting the aqueduct that supplies water to the area where Dalia is trying to grow her garden. Link speaks to her and Calyban agrees to stop polluting if he can bring her ten wildberries. After he fulfils her request she stops polluting as she promised and Link returns to Dalia who ironically rewards him with a Hydromelon.