Nookicky was created by Full in 2001 after Guniw Tools disbanded as a side solo project. It quickly became a three-member band when Dinah and Zull were added to the mix. The name was thought of by putting together Nook (as in "corner") and kicky (as in "excited"). In 2003 Zull left the band, and U was introduced. At this time, Fuumi also joined as a support member for a few months. In early 2005, Dinah left to focus on her solo career. When the band stopped activities it consisted of Full on vocals and U on guitar.