Hearing from Hannah and Barbara about a formal party at Andrew's mansion that Diana is personally invited to attend, Akko, Lotte and Sucy don magical Cinderella dresses purchased from the magical item café and sneak into the formal party. Just as Andrew notices them and prepares to send them out, a mischievous Sucy sets loose a Cupid Bee that cause whoever it stings to fall in love with the first person they see...