"One Day, One Dream" is Tackey & Tsubasa's third single under the Avex Trax label. This is the third retail single for their 2wenty 2wo album.

The a-side song "One Day, One Dream" was used as the 5th opening theme song to the anime InuYasha. The b-side "Deep into Blue" was used as the House Commodity "Tongari Corn" commercial song. The other b-side "Arugamama" was TBS TV "Golden Muscle" ending theme song.

Sample of the translated lyrics:

(You can now, dream)

Brandishing a brave dream

(Go in and try)

a forcible try and repeating worries

You move toward the endless days too

(Do you need to cry?)

Do we cry identically? Loneliness too

(Show me, a day, fight)

Fight up front, and every time you cry,

become steady with your dream^[1]

1. "One Day, One Dream" (Hideyuki Obata, Kei Yoshikawa) - 4:24
2. "Deep into Blue" (Imai Tsubasa) (Batu Bulan, Tetsuhiko Suzuki, Tomoji Sogawa) - 4:22
3. "Arugamama (あるがまま)" (Takizawa Hideaki) (Sumiyo Mutsumi, Masatoshi Sakashita) - 4:20
4. "Ai Sekai (愛世界)" (Hitoshi Haba) - 4:20
5. "One Day, One Dream ~karaoke~" - 4:24

1. "One Day, One Dream" (Hideyuki Obata, Kei Yoshikawa) - 4:24
2. "Deep into Blue" (Imai Tsubasa) (Batu Bulan, Tetsuhiko Suzuki, Tomoji Sogawa) - 4:22
3. "Arugamama (あるがまま)" (Takizawa Hideaki) (Sumiyo Mutsumi, Masatoshi Sakashita) - 4:19
4. "One Day, One Dream: Takizawa Part Version" - 4:24
5. "One Day, One Dream: Tsubasa Part Version" - 4:24
6. "One Day, One Dream: karaoke" - 4:24
7. "Brand New World" - 4:14

• Takizawa Hideaki - vocals
• Imai Tsubasa - vocals

Oricon Sales Chart (Japan)

As of March 2004, "One Day, One Dream" has been certified gold for shipments of over 100,000 by the Recording Industry Association of Japan.^[2]

• ^ "Unlimited". Retrieved April 29, 2006.^{[permanent dead link‍]}
• ^ "Recording Industry Association of Japan". Retrieved August 6, 2006.