Mou､ Kodomo ja nai Watashi na no ni･･･

もう、子供じゃない私なのに･･･

From the single Be Genki <Naseba Naru!>

Performed by Berryz Koubou , Shimizu Saki , Tsugunaga Momoko , Tokunaga Chinami , Sudou Maasa , Natsuyaki Miyabi , Kumai Yurina , Sugaya Risako