Guardians 4

Guardians 4 (ガーディアンズ4)

Guardians 4 was formed mainly for the anime Shugo Chara!, with members Mitsui Aika from Morning Musume, Sugaya Risako and Kumai Yurina from Berryz Koubou and Nakajima Saki from C-ute.

• Mitsui Aika (光井愛佳) (Morning Musume)
• Kumai Yurina (熊井友理奈) (Berryz Koubou)
• Sugaya Risako (菅谷梨沙子) (Berryz Koubou)
• Nakajima Saki (中島早貴) (°C-ute)

http://wiki.jpopstop.com/wiki/Guardians_4