Himari is invited by Aoi to attend a fancy corporate event at her mansion, which the Kirakira Patisserie are also participating in. However, Himari starts to feel out of place when the other guests mock her for being a normal schoolgirl, dropping her recipe book in the process. Just as Aoi helps Himari find her book, Diable spreads more of his darkness around, causing an accident that ruins a new product announcement...