Manatsu no Kousen 真夏の光線
Released May 12, 1999 Editions 2 Tracks 1
Regular edition · Regular (8cm)
| 1 | Manatsu no Kousen | A-side |
| 2 | Koi no Shihatsu Ressha | B-side |
| 3 | Manatsu no Kousen (Instrumental) |
Other edition · 12cm CD
| 1 | Manatsu no Kousen | A-side |
| 2 | Koi no Shihatsu Ressha | B-side |
| 3 | Manatsu no Kousen (Instrumental) | |
| 4 | Manatsu no Kousen | B-side |