4U ～Hitasura～ 4U～ひたすら～
Released September 3, 2003 Editions 1 Tracks 2
Regular edition · Regular
| 1 | 4U〜Hitasura〜 | A-side |
| 2 | Bukiyou na Tenshi | B-side |
| 3 | 4U〜Hitasura〜 (Instrumental) | |
| 4 | Bukiyou na Tenshi (Instrumental) |
| 1 | 4U〜Hitasura〜 | A-side |
| 2 | Bukiyou na Tenshi | B-side |
| 3 | 4U〜Hitasura〜 (Instrumental) | |
| 4 | Bukiyou na Tenshi (Instrumental) |