The single contains the songs "Real Emotion" and "1000 no Kotoba (1000 Words)", which were featured in the video game Final Fantasy X-2.

[1] "Real Emotion" / "1000 no Kotoba" is Japanese R&B singer-songwriter Kumi Koda's seventh single and first double A-side.

[3] An orchestra version was included in limited editions of her album Grow into One as a bonus track, which played during the credits of X-2.

[4][better source needed] Final Fantasy X-2 single was released under Avex with the title "Kuon: Memories of Waves and Light" in November 2003.

[7] "Real Emotion" had a music video, appearing in the DVD 7 Spirits, and released alongside her corresponding album Grow into One.

"Real Emotion" was used as the opening song for the Square Enix role-playing video game Final Fantasy X-2 as Yuna, a returning protagonist from Final Fantasy X, performs the song during the opening full motion video cutscene at the blitzball stadium in Luca in the world of Spira.

However, it is soon shown that in fact, it is Leblanc, a rival sphere hunter posing as Yuna after stealing her Songstress dressphere.

In the segment, Yuna sings the love song, written by the character Lenne – the basis of her Songstress dressphere – to her lover, Shuyin – both who had died 1000 years ago in Zanarkand.