Online manga anthology based on the iDOLM@STER mobile game "Cinderella Girls" whose tagline is "over 100 girls to produce". It consists of 5 main story arcs and special guest chapters, each with different authors.

Main arcs:
1. Piyoderera (ぴよでれら) by by Mijinkouka.
2. Cinderella☆Egg (シンデレラ☆エッグ) by Nagian.
3. I Became an Idol (アイドルはじめました, I Became an Idol) by Amatou.
4. Rin-chan Lesson (凛ちゃんLesson!) by Tachi.
5. Beautiful Rhythm (うららかリズム, Beautiful Rhythm) by Abe Kanari.

Guest chapters:
1. Cinderwriter (シンデレライター♪) by Chama Uji.
2. Kanzaki Ranko's Daily Life (神崎蘭子の日常, Kanzaki Ranko's Daily Life) by Puyo.
3. Let's Go Artdol (レッツゴー芸ドル, Let's Go Artdol) by Kaduho.
4. Rainy With a Chance of Sunshine by Natsuki Yuu.
5. Lazy Fairiiiies by Kingin.

The anthology features illustrations and comics drawn by other mangaka as well as Tsubaki Izumi herself: • The King’s Game, Nozaki-kun by Izumi Tsubaki