Jewelpets and KiraDeco 5 meet up in the Kira Kira Shop to discuss how many more Deco Stones they will find. When they try to find out how to get them, Diana, a munchkin cat Jewelpet, gets annoyed on the Kira Deco 5 ignoring her in the last few events of the series. With her anger boiling up, she used her Jewel Magic and take the group to another dimension called Smoothland, where everything is as smooth as a bald man's head. The challenge for them is to make Diana and the other Jewelpets laugh.