Hinata begins to consider quitting being a Pretty Cure, much to the dismay of her friends. While trying to explain her feelings, Rate senses a MegaByogen so the girls go looking for it. Despite Rate's directions, the girls are unable to find the MegaByogen but discover that everyone around town is suffering from static electricity building up, and assume it must be the MegaByogen. However Hinata begins to voice her doubts again, even when her sister becomes trapped in her Juice van, but Nodoka and Chiyu manage to encourage her to do her best. Suddenly the girls discover a drone which has been infected by the MegaByogen and realize it must be flying around town. Hinata manages to track the MegaByogen, along with Guaiwaru and Batetemoda, and the girls transform to fight it. With the help of Cure Fontaine's Ice bottle, the Cures are able to defeat the MegaByogen and free the Lightning Spirit using Healing Oasis. Afterwards, the Lightning Spirit gives Hinata a new elemental bottle, and Hinata resolves to do her best in the future.

Rabirin and the other Animals come across a Daruma doll outside a Lavender Tea shop. Nyatoran openly scoffs the doll but Rabirin secretly likes it. Rabirin confides in Nodoka about the doll and Nodoka agrees to help her get one in a promotional event being held at the shop. However, when Rabirin finally gets the doll, Nyatoran finds out causing Rabirin to become embarrassed and throw it away. Nodoka becomes upset with Rabirin and the two have their first argument. The next day, both Nodoka and Rabirin still feel animosity towards each other, which complicates matters when Daruizen creates a MegaByogen and Nodoka and Rabirin find they cannot transform. Cure Fontaine and Cure Sparkle engage the MegaByogen while Rate forces Rabirin and Nodoka to talk. Rabirin apologizes to Nodoka for the way she acted and the two reconcile and transform to help the other Cures defeat the MegaByogen. Afterwards, the Leaf Spirit gives Nodoka and Rabirin a new elemental bottle.