Toutou can be seen below.
Toutou (トゥートゥー) is a singing and idol group composed of two sisters. They are the Self Insert of Sayaka Nishimura and Marika Nishimura.
In their Keronian forms, they appear to be twins, they have yellow skin wearing a jagged pink caps (One of them is wearing red eyeglasses) with an orange star hair clips on their caps. They have pointed cat-like eyes. Their symbol are pink colored "tou", referenced to their title, Toutou.
- Sayaka Nishimura
- Marika Nishimura
- Kokoro no Mondai / Onegai! Prime Minister (November 16, 2005) - The song Problem Of the Heart is the fifth ending song of the anime Keroro Gunso.
- Keroro Dancing / Ogihayaki (chorus participation)
- The Toutou inserted in the Problem Of the Heart poster in their Keronian forms.
- toutou at Wikipedia (Japanese) (Japanese)