A famous world-class creator is to be chosen as a director for a commercial for macarons, with Mio going to be filming the commercial when they are faced with a surprise. However, the background music is an Ondo, and is not fit for a macaron commercial. It is up to Mio to make an impactful "Big Bang" CM when nothing goes as she had predicted.

Still upset over losing to Pure Palette, Maika has yet to tell her parents she will not be competing in the Brilliant Friends Cup. As Maika struggles to hide the truth, it begins to affect her work. The designer of Dancing Mirage, Maika's favorite brand, tells her she isn't ready to become the brand's muse. Feeling lost about what to do, Ema steps in to help.