The Enemy is... The Popular Exchange Student!?.A boy named Rio Kuroki transfers into Ichika's class, quickly becoming popular with the other students and taking a peculiar interest in Ichika. Later that day, Gummy and the others appear at the patisserie, explaining how they became evil as a result of belts given to them by the masked boy, apologizing to the girls and learning the joy of eating sweets instead of just stealing its kirakiral...