MARs will formally debut on Callings' variety show, Go! Go!! Callings, but Rizumu's nervousness and meddling from Aira's father ruin their broadcast. During the game segment, Hibiki, Serena, and Kanon compete against MARs, and despite Aira's father destroying the set, they win. Afterwards, they perform a Prism Show live for the first time as a trio with the song "My Heart's Fiery!"