Alata: Who are you to show up and destroy a building when they are no enemies around?
Agri: That's right. You're a Headder, right?
Gosei Knight: I am no mere Headder. I have evolved from the power granted to me by the Earth.
Alata: What?
Gosei Knight: 10,000 years ago, I fought the Yuuma Beasts with the Goseigers of that time. But before I knew it, I was far from battle sleeping in the ground under the thick ice. During those long years, I felt it. The Earth was weakening. If the pollution continues, it will surely be destroyed. To stop it, the Earth shared its own power with me. And, then I was awakened by the Yuuma Beasts' resurrection. I didn't think the current Goseigers would be so unreliable. From now on, I will protect the Earth myself. For I am the purifier of the Earth.