Number Girl
were a five-member session band created to record songs for Rie Tomosaka's "Shōjo Robot" in 2000. It featured Rie Tomosaka on vocals, Ringo Sheena on piano and chorus, Hisako Tabuchi of Number Girl/Bloodthirsty Butchers as the band's guitarist, as a bassist (who later performed with Chirinuruwowaka) and drummer Rino Tokitsu of and Sheena's high school band Marvelous Marble.