She was born in Meguro, Tokyo as Naoko Niimura (新村 直子).
Inoue made her debut as a gravure idol in 2002 and went on to make several DVDs through 2006.
[2] She also worked as a guest announcer/interviewer for K-1 in 2006, after replacing Norika Fujiwara.
[3] Inoue remains active as an actress, appearing in numerous television commercials and programs, as well as on radio.
Inoue played herself in episode 488: The Devil of the TV Station, of the Detective Conan anime series.