- Hayashibara Megumi
- Catalog Number
- KICM-3035 (Regular)
- KICM-3036 (Anime Version)
- KOIBUMI (Love Letter)
- Asa Hitsujiki Yoru Watari (朝未き・夜渡り; Lasting from Night until Morning)
- faint love
- KOIBUMI (Off Vocal Version)
- Asa Hitsujiki Yoru Watari (Off Vocal Version)
- faint love (Off Vocal Version)
"KOIBUMI" is the 43rd single released by Hayashibara Megumi. The single is Hayashibara's second single to be released in two different editions ("Over Soul" being the first): the regular edition of the single features Hayashibara on the cover, and there is a limited edition anime type cover. The lyrics of "KOIBUMI" quote the Japanese poem "Manyoshu".
The title track was used as the first ending theme song to the anime Asagiri no Miko, "Asa Hitsujiki Yoru Watari" was used as the second ending theme, and "faint love" was used as the series' opening theme. All three songs are later found on her 11th studio album, "center color".
The single reached #7 on the Oricon chart, and stayed on the chart for a total of ten weeks, selling 63,300 copies.
Oricon Chart Positions
Total Reported Sales: 63,300*