Rizumu reaches her 18th birthday and plans to announce her marriage to Hibiki. She asks Team B, consisting of Karin, Hye-in, and Shi-yoon, to inform Kanon, Hibiki's sister. After several attempts, Kanon reveals that Hibiki had already told her. Inspired, Team B plans their concept around the theme of "gratitude" and names their group "P&P". During Rizumu and Hibiki's announcement, P&P perform the Prism Act "We Love You! Thank You For Your Kiss-Kiss Love!" to ease the audience's ire and celebrate their marriage. Meanwhile, Sho is upset that P&P had chosen Yun-su's design.