Kanade wants to enter a cake contest to impress her baking idol, Yoko Yamaguchi, but is having trouble coming up with ideas that would impress. Siren decides to disguise herself as Yoko and give Kanade private lessons to make some controversial cake designs that focus on presentation as opposed to taste. This causes her to come into conflict with Hibiki, who doesn't think much of these new cakes compared to the kinds Kanade usually makes. However, she soon realises the meaning behind Hibiki's words and makes an old fashioned strawberry cake, which Siren transforms into a Negatone, which the PreCure then defeat.
響は奏が作るケーキが大好きだった。奏は、コンテストに向けて新しいケーキ作りに一生懸命。そんな彼女に協力したいと響は考えるが、コンテストで優勝するケーキを作ることが大事なのか、疑問を抱く。
