Abe Natsumi Nippon Seinenkan Kouen '05 Revue & Concert "Murata-saan Goki?" ( 安倍なつみ 日本青年館公演'05 レビュー＆コンサート「むらたさーんごきっ？」) was a revue and concert by Abe Natsumi in Nippon Seinen-kan. Melon Kinenbi featured in the concert as guests.
"Murata-sa~n,Gokii?" tells the story of the girls attending dance school. Natsumin (Abe), Hitomin (Saito), Ayumi (Shibata), Masae (Otani) and Murata-san (Murata). They dream of being spotlighted on the big stage. Natsumin is going to gather them up as leader at team, but their mind do not unite into one.