Both the girls and the Minor Trio learn that as long as the girls have the Heart Tone Keys inside their Cure Modules, the Melody of Sorrow can't be completed. After Bassdrum and Baritone's less than stellar plans fail, Falsetto uses Noise's power to take control of Waon and Seika in order to steal the Cure Modules from the girls. However, these turn out to be fakes that Ako had prepared in secret...