Also known as: コンセプト★ギャールズ
An Official Alternate Costume from Idolmaster Million Live! Theater Days, worn by the following characters. It has a Gyaru-style school uniform as its motif.
Appearance
- Concept★Gyarus
Characters
- Hoshii Miki
- Minase Iori
- Kasuga Mirai
- Ibuki Tsubasa
- Hakozaki Serika
- Nanao Yuriko
- Fukuda Noriko
- Nagayoshi Subaru
- Suou Momoko
- Julia (Idolmaster)