Once

 is the fifth single by Harada Hitomi.

Single Information
Once was used as the opening theme for the anime Itsuka Tenma no Kuro Usagi.

Tracklist

 * 1) Once
 * 2) Kyuuai Real (求愛リアル)
 * 3) Once (off vocal)
 * 4) Kyuuai Real (求愛リアル) (off vocal)