"Senkō" is Tomiko Van's second single under the Avex Trax label. The single was released on September 27, 2006 in two formats, four months after her last single.
"Senkō" is the second single to be released by solo artist Tomiko Van after the split up of the Japanese band Do As Infinity. The A-side song was used as the commercial song for the ringtone service site mu-mo, and for music.jp TV-CF. Online store, CD Japan, describes the title song as "a medium tempo track that's just perfect for autumn", and her official website simply describes it as a medium rock number.
A drastic change from her previous single, "Senkō" takes on a much darker tone than the up-tempo "Flower". Lyrically, the song is about the sorrows and inward struggles of a woman who is by herself. Instrumentally, the song uses heavy guitars to help in the overall dark tone the song takes.
Saa hari wa ZERO o sashita
kakedasou BEDDO wa mujuuryoku
samete wa kurenai ne kimi no koe, sayonara no oto
surihetta REKODDO ga
yasashiku omoide wo kanadeta
saigo no kotoba dakara kirei nante
kasunda kako wa namida no sei
When swan sings last song
The time for walk with you, i loved
me ni utsuru mono wa yagate
kawaru darou reigai wa nai ne
taisetsudato kidzuite kara nakusu koto me wo somuketeta
kokoro no garasu marude
SUPANKOORU no youni kirameiteta
hane wa nakute mo
nani wo nakushite mo
hodoketeku ito e
ima mo kogarete
When I sings your song
At end of the world, I loved
mai ochita hanabira
mou omokage mo nai ne
kanashii uta ima no keshiki
wasurenai youni hoho wo nadeta
senkou no youni fukai yami nukete
owaranai yume ni wakare o tsugeru
chiri yuku hibi mo
mikansei na uta mo
mirai o kanade chihei wo koete
When swan sings last song