Stradford is holding their annual culture festival on campus, where the students set up booths in order to compete for the most brooches as part of their curriculum. After seeing how well Sytry's booth is doing, Dantalion and Isaac begin their own booth, both of them becoming increasingly popular. However, William, wanting to use this as an opportunity to raise money for his tuition and boost his grades, is unable to formulate an idea for the festival. Manipulating Dantalion and the others (including Gilles de Rais, who was at the school to help with Sytry's booth), William decides to use to them as workers for his café. Soon, he is approached by Baphomet and Sytry's butler, Leonard, in their human forms and is asked to be a judge for the butlers' cooking competition. Ultimately, Baphomet is the winner, much to Leonard's dismay. Afterwards, William makes Baphomet and Leonard serve as chefs for the café. In the end, while William's café did well, Camio was proclaimed the winner of the culture festival.
맛없는 기숙사 음식에 질려버린 단탈리온에게 들려온 희소식, 그것은 바로 학교 문화제 개최였다. 학생 마음대로 노점을 낼 수 있는 문화제에서 윌리엄은 성적 향상과 금전을 위해 힘쓰게 되는데....