As Milky Holmes try to determine the whereabouts of the other Elements, Senra, a member of Marine's idol group BKT1000, decides to quit the group prior to an audition for a film role alongside Marine, which fellow member Miki is asked to audition for instead. Meanwhile, Kokoro is brainwashed by Keiko into becoming a masked idol competing against Marine while posing as one of Marine's elements. In the final audition, Marine's dedication to her fans exposes Keiko and frees Kokoro, earning Marine the role.