Demeter was a brilliant palace Chef.
Her cooking skill was so incredible that the King of another continent was taken by her food and wished to scout her. Demeter believed that the ultimate goal of cooking was to make the taster happy, and so she set out on her lifetime goal to create a meal that would make everyone happy. After many attempts and much research she finally completed her recipes.
Demeter met the Day of Despair before she could cook her completed recipe.
Demeter greatly increases the summoners HP auto-recovery and allows the usage of exclusive skills such as Lusty Smell which poisons enemies with a powerful poison.