Najica's next mission is to investigate a Japanese idol group called the 4C'zNs as one of its members is suspected of being a Humaritt. Lila pretends to be a new idol, and tries to scan the girls to see if they have the serial numbers indicative of a Humaritt. However, it proves difficult as the girls act the same, leading them to wonder if they might all be Humaritts. When the girls capture Lila, Najica rescues her but as they chase down the girls, they discover that they don't have the special markings and that their manager is the true Humaritt.