Having escaped the Byogen Kingdom, the Cures begin purifying the MegaByogens around Sukoyaka City. With only a GigaByogen left the Cures head to the forest park where the citizens of Sukoyaka have taken refuge to intercept the monster. Meanwhile, Daruizen informs Guaiwaru that the Pretty Cures have escaped and both leave to confront the Cures during the battle with the GigaByogen, where they are also joined by Shindoine, who surprisingly appears to accept Guaiwaru as the new Byogen King...