In the preliminaries, Tatara and Chinatsu have a perfect score whereas Akira and her partner Mine are down one point. Akira is annoyed when Chinatsu smugly says that Tatara is her true rival, causing her to fall out of sync with Mine. While Chinatsu gives dance her all, Akira claims that she doesn't even enjoy it. The two totally opposite girls have known each other since elementary school... (thetvdb.com)