"Flower" is Tomiko Van's debut single under the Avex Trax label.

"Flower" is former Do As Infinity lead singer Tomiko Van's debut single.

The B-side "Brave" was used as the ending theme song for PlayStation 2 game Sengoku Basara 2.

Unlike most of the songs on her debut album, "Flower" is an up-tempo pop song with a feeling of summer to it.

The song features guitars, an instrument that was not as prominent in her debut album, and is reminiscent of songs that she would sing during her times in Do As Infinity.