Not Yet is a Japanese J-pop group formed in 2011 as a spinoff of AKB48, a
prominent idol group. The quartet consists of Yūko Ōshima, Rino Sashihara, Rie
Kitahara, and Yui Yokoyama, all of whom were also members of AKB48. Produced by
Yasushi Akimoto, Not Yet was created around Yūko Ōshima, one of the most popular
members of AKB48 at the time. The group's debut single, "Shūmatsu Not yet", was
released in March, 2011, and reached Number 1 on the Oricon weekly chart. The
single's title track achieved a significant milestone by topping the Chaku-uta
download charts in just two days, a...