While at the school swimming pool, Cocona and Papika end up in another Pure Illusion resembling a futuristic city. After being saved from mutant birds by Yayaka's group, the girls come across a short scientist named OO-303, who they nickname "Pops" (or "Mister"), before a giant humanoid robot containing an amorphous fragment appears. As OO-303 states his determination to protect his city, he gives Cocona and Papika some battle vehicles, which combine into a giant robot known as PapinaKing...