[Machine Translation] Kuroe Koto, a student at Kyoto's Shizou University, is invited to work in a kitchen car by her mysterious classmate, Hatsushima Kazuha. With her proven culinary skills and keen insight, Kazuha unravels the mysteries of strange happenings in the city while presenting her exquisite menu. Why was the hot sandwich left behind on the day of the fair? What trick did the pickpocket use at the food stall? The two try their hand at sales and deduction, but unexpectedly get caught up in an internet firestorm...