Hustle, Tsubasa! The Dancing Birthday Party!.For the first time in his busy life, Tsubasa is invited to a classmate's birthday party. Owl is worried that Tsubasa will embarrass himself, and his fears quickly turn out to be justified. When Tsubasa destroys the birthday girl's cake, he scrambles to find ingredients to make a new one, only to find the town suffering from a curious chocolate shortage...