Whilst the ship undergoes repairs, the understudies are sent to gather data on the planet they landed on. During their exploration, Yūka and Orine come across a strange creature, which Orine decides to name Mofufu. Later that night, the group's campsite is attacked by fierce looking creatures who capture Mofufu. Despite Tsubasa's objections, Orine decides to go on a rescue mission to save Mofufu, with Nagisa, Chieri and Yūka deciding to join her. As the group reach Mofufu's location, Zodiac mechs appear, and start attacking Mofufu's captor, who Orine comes to realise is its mother, but Mikako and the successors manage to hold them off. Mikako explains the planet they are on, Funghistar, is rich in Dualium, with Zodiac plotting to destroy the wildlife in order to mine it. Arriving at a large Dualium crystal, which Orine decides they must defend, the group manage to use the power of song to convince the creatures, the Funghi, they are friendly. The power of the song reacts with the Dualium, producing a light that shuts down the enemy mechs. As a sign of their new friendship, the Funghi give Orine a Dualium crystal shard. Whilst Tsubasa deduces that the resonance between idols and Dualium may help them reclaim Akibastar, Chieri and Nagisa sneak on board one of Zodiac's ships so that Chieri can confront her father face to face.