The Key Teeniepings, special Teeniepings residing in the Mystic Village of the Emotions Kingdom, are once again released on Earth by Jennie, with more cruel intentions than ever! As the evil princess settles in the now-deserted Mystic Village, Romi gets in charge of catching them all, with the help of the three Royal Key Teeniepings, and of a mysterious Teenieping locked in a chest, whose identity remains a secret...