Take Them Back! The 5 Crystal Jewels

The Dokudoku-dan invade Miracle²'s dormitory and turn Yukie into the Negative Jeweler, Udekikokkun. Miracle Tunes defeat her, recovering the Tango Jewel. Afterwards, the Goddess of Music gives Mai the Crystal Melody Box, which plays a healing melody once all Sound Jewels have been collected and activates Final Mode after the Crystal Jewels have been found. However, the Demon King summons Sano and Uno, breaking the Goddess' mirror and creating five Super Negative Jewelers with the Crystal Jewels.