Also known as: モンスター!スライム
An Official Alternate Costume from Idolmaster Million Live! Theater Days, worn by the following characters. Its motif is Slime (Creature).
Appearance
Characters
- Amami Haruka
- Akizuki Ritsuko
- Nonohara Akane
- Mochizuki Anna
- Handa Roco
- Matsuda Arisa
- Tenkubashi Tomoka
- Emily Stewart
- Kitakami Reika
- Suou Momoko
- Kinoshita Hinata
- Fukuda Noriko
- Ogami Tamaki