GTT Club is considered the pre-cursor to NICE GIRL Project! Kenshuusei, and when NICE GIRL Project! was launched in late 2007, the members were absorbed into NICE GIRL Project! Kenshuusei and GTT Club effectively disbanded.
After disbanding, Shiorin and Marina were active as NICE GIRL Project! Kenshuusei members. Karen was promoted on May 3, 2008, and debuted as an Enka soloist under NICE GIRL Project!. Wakabi seemingly withdrew without notice after being introduced on March 11, 2007.
As of 2012, all members have since left NICE GIRL Project!.