ReBirth is the ninth album by Masami Okui, released on 4 February 2004.
- Introduction
- Lyrics: Masami Okui
- Composition: Ikuo
- Arrangement: Hideyuki Daichi Suzuki
- Poison
- Lyrics: Masami Okui
- Composition, arrangement: Macaroni
- Second Impact
- Lyrics, composition: Masami Okui
- Arrangement: Toshiro Yabuki
- I Lost
- Lyrics, composition: Masami Okui
- Arrangement: Hideyuki Daichi Suzuki
- Innocence
- Lyrics: Masami Okui
- Composition, arrangement: Monta
- Shinkai ~ReBirth~ (深海 ~ReBirth~)
- Lyrics, composition: Masami Okui
- Arrangement: Monta
- Triangle+α
- Lyrics: Masami Okui
- Composition, arrangement: Macaroni
- Message (LA version)
- Lyrics: Monta, Masami Okui
- Composition, arrangement: Monta
- Boukensha (冒険者)
- Lyrics, composition: Masami Okui
- Arrangement: Yamachi
- Houkago no Tenshi (放課後の天使)
- Lyrics, composition: Masami Okui
- Arrangement: Monta
- Pandra ~Gendai Shinwa~ (PANDRA ~現代神話~)
- Lyrics, composition: Masami Okui
- Arrangement: Monta
- Earth
- Lyrics: Monta, Masami Okui
- Composition, arrangement: Monta