With only Mia's hint, Puretty searches for clues in the planetarium. Sho and Yun-su remake Symphonia outfits for Puretty, but like Mia, only Hye-in's outfit hasn't changed. Nevertheless, during their Prism Show, they enter the Door to Symphonia and realize they must take Aira beyond the realm and heal her with their new outfits. As Puretty goes further, they perform the Prism Act "Sky High Symphonia", which Aira had failed to master. They win the Sky High Symphonia and free the rest of Pretty Top.