Yū (song)
is a song recorded by Japanese singer Shizuka Kudo, released as a single through Pony Canyon on June 5, 1996. It featured as the theme song on the ninth and penultimate installment of the Gokudō no Onna-tachi Yakuza film series, Gokudō no Onna-tachi: Kiken na Kake (1996), starring Kudo herself. The coupling song "Luna (Tsuki no Megami)", which was first included on Kudo's album, Doing, a month prior, is the theme song to the film Bakusō! Moon Angel: Kita e (1996), starring Kudo as a female truck driver in her first cinematic role since Future Memories: Last Christmas. The song was recut as a B-side to "Yū" to promote the film. "Yū" is the third and last in a consecutive trilogy of singles with one-character titles: "Yū" is preceded by "Chō" and "7". Background "Yū" is a ballad co-written by Kudo, under the pseudonym Aeri, and Hideya Nagazaki. It is written in the key of C-sharp minor and set to a tempo of 70 beats per minute. Kudo's vocals span one octave, from B3 to B4. The song represents Kudo's heartfelt ode to her mother. Lyrically, it describes the strength of a mother and the greatness she brings to the