When you enter the small cave after defeating all of the Team Galactic grunts, a man with a dark colored, rather odd clothing is facing away from you. He’s talking to himself.
"The mission is proceeding without a hitch. The boss should be pleased. Everything is for everyone, and for the good of Team Galactic!"
The horn-like tufts of hair on his head seemed to peel up a little when he heard your footsteps. Or maybe he just felt your presence. He turned around, and his expression contorted to disdain.
“I recognize your face! You're the child who raided the Team Galactic Building in Eterna! Humph! Jupiter should be ashamed of herself, being beaten by a child. But anything that opposes Team Galactic must be crushed! Even the very thought of opposition will not be tolerated!"
Let the battle begin!