Momo, Okarun, and Turbo Granny search for the missing golden ball. They search all over the school and find out that a pretty girl named Aira is in possession of a ball. Perhaps the effects of the ball, but Aira can now see "invisible things" now.

The battle against Acrobatic Silky is over, Aira harbors romantic feelings stemming from how Okarun had saved her. As Momo, Okarun, and Aira's feelings intertwine, Serpoians make another appearance, and the three of them are trapped in void space.