- Believe (ビリーブ)
- 2005.05.07 (Zenpen)
- 2005.06.07 (Kouhen)
- CD1 Tracklist
- Believe ~Zenpen~ (ビリーブ ～ゼンペン～; First Part)
- CD2 Tracklist
- Believe ~Kouhen~ (ビリーブ ～コウヘン～; Latter Part)
"Believe ~Zenpen~" and "Believe ~Kouhen~" are the sixth and seventh respective other/distrbuted singles released ay Ayabie. The CDs were released along with T-Shirts, which were collaborations with Death Trap-ID. Each part is a limited release having only 1,000 copies.