All the girls perform Orchestras to try to thwart the horde of Magical Monsters heading towards Mamuceaster. Later on, we learn the secret that Eliza's been keeping.
Tiara arrives at Mamkestell to enroll at Flora Girls' Academy. She finds it easy to get in, as "all those with a bright future are given a chance," and meets Rosetta, her childhood friend.
Tiara and the rest of her group try to get ready for their first Orchestra and Tiara also learns more about her old sister Eliza and the unit she was in named Ray.
The girls go look for Maryberry, who has disappeared. Meanwhile, some of the girls may have figured out the cause of the supernatural phenomena they've been sent to investigate.
Tiara and her group finally start getting some points. Tiara comes to the conclusion that she'd like to perform an Orchestra with her friends, and she finally finds out the truth about Yue.
Lucifer and Angelica challenge Tiara and her group to a board game. Meanwhile, some of the other groups survey the forest after reports of something strange happening there.
Tiara and the others find out that a horde of Magical Monsters is headed towards Mamuceaster, so they try to head back, but Eliza stops them. Meanwhile, the other groups back at the academy get ready for the Ceaster Festival.
After finding out that her group is in danger of being expelled, Tiara tries to form a study group. Meanwhile, Rosetta keeps running off on her own after school, so the other girls follow.