[1] It is Kokia's second most commercially successful single after "The Power of Smile/Remember the Kiss," due to being used as the daytime TV drama Itoshiki Mono e's theme song.

The B-side "Tell Tell Bōzu" was used as the second ending theme song to the anime Hungry Heart: Wild Striker.

[5] Kokia was featured in many music-related and fashion-related magazines in May 2003, such as "Barfout," "Caz," "CD Hits," "Gekkan Piano," "Girl Pop," "Grand Magasin," "What's In?"

"[5] "Kawaranai Koto (Since 1976)" is a mid-tempo pop song, featuring a sparse piano, percussion and occasional strings arrangement.

One distinctive shot in the piece is in the brown field, where a small green plant with red flowers is shown near the beginning and ending of the clip.