[DeepL Translation - needs review] Volume 1 Introduction: Not long after rescuing Miyu, who was swallowed by despair, Ilya and her friends are confronted by two mysterious sisters who are masters of class cards! The new generation of magical girls who have stepped forward to the next level are the focus of attention!
(Translator: DeepL)
Plot is fine - a few interesting twists, and things are getting a bit めちゃくちゃ.
The extras are 2 "Rin & Luvia's feelings for Shirou" stories, plus one forced ecchi Chloe x Ilya while Miyu watches story (ewww). The first two are probably fine (skipped cuz I'm not feeling well), and I'm not reading the third.