Nodoka's father takes her and Asumi to a Hot-Air Balloon race to watch the team from his former college compete. Asumi learns about the feeling of passion and both her and Rate decide to cheer for the team too. However, when the team loses the first race, Asumi learns about the feeling of frustration but vows to help them win the next race by predicting the wind direction. Everything goes well until the team are just about to finish, during which, Guaiwaru appears and creates a MegaByogen, powering it up with multiple Mega Parts. The MegaByogen proves too strong for the Cures but is shown to be vulnerable to the wind direction. Cure Earth uses this to trap the monster in a vortex before purifying it. Afterwards, the freed Air Spirit gives Asumi a new elemental bottle. Later while everyone enjoys pancakes supplied by Hinata, Nodoka hears a sound in the nearby forest and goes to investigate. She finds Daruizen about to use a Mega Part on a crow and transforms into Cure Grace to confront him. However, Daruizen gets an idea and uses the Mega Part on Cure Grace, knocking her unconscious.