This single is Maeda's second Korean-themed single in a series of three. She once again collaborated with Korean song/music writer Yoo Hae-Joon and lyricist Mori Chiyoko. They would go on to produce all her Korean-themed singles, with help of different composers.
- Mianhaeyo ~Gomennasai~
- Eien (永縁; Eternity)
- Mianhaeyo ~Gomennasai~ (Original Karaoke) (オリジナル・カラオケ)
- Mianhaeyo ~Gomennasai~ (Halftone Lower Karaoke) (半音下げ・カラオケ)
- Eien (Original Karaoke) (オリジナル・カラオケ)
- All Lyrics: Mori Chiyoko
- All Composition: Yoo Hae Joon
- All Arrangement: Makaino Kouji
Total Reported Sales: 751
- This is Maeda's first release after graduating from Hello! Project alongside the rest of the Elder Club.
- "Mianhaeyo" (미안 해요) is a Korean word that has the same meaning as "Gomennasai".
- "Eien" is misspelled in the title of track 2 for poetic reasons. It should be Eien (永遠; eternity), but it is written 永縁. 縁 means fate or destiny that two people meet, or get married. 永縁 might be a wish for the good match lasting forever.
|Singles||1. 1. Naki Usagi | 2. Tokyo You Turn | 3. Tokyo, Yoimachigusa. | 4. Tokyo Kirigirisu | 5. Sarasara no Kawa | 6. Nishi Shinjuku de Atta Hito | 7. Omae no Namida wo Ore ni Kure | 8. Ai Ai Daiko | 9. Gwaenchanha ~Daijoubu~ | 10. Mianhaeyo ~Gomennasai~ | 11. Busan Hatsu|
|Albums||1. Maeda Yuki Zenkyoku Shuu ~Gwaenchanha~ | 2. Busan Hatsu ~Kankoku Series Best~|
|Units & Other Acts|
|Associated Acts||SALT5 | H.P. All Stars | Ganbarou Nippon Ai wa Katsu Singers|