O₂ (オーツー) is a sive-member idol group. They made their stage debut on April 29, 2023 @Nagoya Diamond Hall.
The founding members are all former members of OS☆K.
Members[]
Current Members[]
- Minami Miyuka (南みゆか; Red) (Founding member)
- Miyagawa Hikari (宮川耀; Orange) (Joined April 29, 2024)
- Kusunoki Rina (楠木りな; White) (Joined April 29, 2024)
- Aomatsu Nao (青松奈央; Blue) (Joined April 29, 2024)
- Koishiro Kurumi (恋城くるみ; Pink) (Joined April 29, 2024)
Former Members[]
- Nishino Kokoro (西野心桜; Pink) (Founding member; Withdrew December 15, 2023)
- Nohara Yuina (野原ゆい菜; Yellow) (Founding member; Withdrew April 17, 2024)
- Yumeno Misaki (夢乃心咲; Purple) (Founding member; Graduated March 20, 2025)
- Momose Hiyori (桃瀬ひより; Green) (Founding member; Graduated March 20, 2025)
Gallery[]
April 2023