In ancient times, the Mecha Empire Sharmachina, which ruled the Earth with its superior technology, was sealed deep within the planet by the brave Kaiju Tribe warrior Garukibas. However, due to the effects of climate change, the seal weakened, and they once again began to ravage the surface. The souls of the heroic Kaiju Tribe warriors entrust their power to five young people. They become the Kaiju Sentai Jyuukaizer and boldly confront Sharmachina together with their Buddy Kaiju! One of the Jyuukaizer, JyuPink / Randou Sora, is captured after a fierce battle. With her Kaiju Changer stolen, Randou Sora is unable to transform… [BAD END]