# 後悔史 - Koukaishi — Tani Yuuki

<https://hit-masters.com/en/tracks/tani-yuuki-koukaishi-xvme6Q1Em30>

[Home](https://hit-masters.com/en) › [Tani Yuuki](https://hit-masters.com/en/artists/tani-yuuki-UCvMixCPGxmC2I8GzwkQvgTw) › [Koukaishi](https://hit-masters.com/en/albums/tani-yuuki-koukaishi-MPREb_7fgZTBTkNJB) › [後悔史 - Koukaishi](https://hit-masters.com/en/tracks/tani-yuuki-koukaishi-xvme6Q1Em30)

“後悔史 - Koukaishi” by Tani Yuuki. From the album Koukaishi (2025). Certified B-Side (Uncommon) in HitMasters, the music trading card game.

| Field | Value |
| --- | --- |
| Artist | [Tani Yuuki](https://hit-masters.com/en/artists/tani-yuuki-UCvMixCPGxmC2I8GzwkQvgTw) |
| Album | [Koukaishi](https://hit-masters.com/en/albums/tani-yuuki-koukaishi-MPREb_7fgZTBTkNJB) |
| Year | 2025 |
| Length | 4:21 |
| Certification | [B-Side (Uncommon)](https://hit-masters.com/en/ranks/b-side) |
| YouTube Music plays | 1,700,000 |
| YouTube Music | [https://music.youtube.com/watch?v=xvme6Q1Em30](https://music.youtube.com/watch?v=xvme6Q1Em30) |

## The certification

Certification for songs whose popularity index ranges from 640,001 to 720,000. Published odds per record pulled: 20%. Rarity: Uncommon.

## On the same album

- [kotodama – Tani Yuuki (B-Side)](https://hit-masters.com/en/tracks/tani-yuuki-kotodama-WU8W5XA2g4U)
- [最後の魔法 - Saigo No Mahou – Tani Yuuki (Demo)](https://hit-masters.com/en/tracks/tani-yuuki-saigo-no-mahou-g__KohGGUKY)
- [Dear drops – Tani Yuuki (Demo)](https://hit-masters.com/en/tracks/tani-yuuki-dear-drops-rPCUUtDnvuk)
- [everyday – Tani Yuuki (Demo)](https://hit-masters.com/en/tracks/tani-yuuki-everyday-ymA8-Q8sNKA)
- [他人り事 - Hitorigoto – Tani Yuuki (Demo)](https://hit-masters.com/en/tracks/tani-yuuki-hitorigoto-LICbBUNS3-I)
- [アンタレス - Antares – Tani Yuuki (Demo)](https://hit-masters.com/en/tracks/tani-yuuki-antares-e5lMbVgOARo)
- [械物 - Kaibutsu – Tani Yuuki (Demo)](https://hit-masters.com/en/tracks/tani-yuuki-kaibutsu-MTB5bQZgipc)
- [Survivor – Tani Yuuki (Demo)](https://hit-masters.com/en/tracks/tani-yuuki-survivor-Yb8JWGfBPB8)
- [吾輩は人である - Wagahaihahitodearu – Tani Yuuki (Demo)](https://hit-masters.com/en/tracks/tani-yuuki-wagahaihahitodearu-3PeqasSRf40)
- [自分革命 - Jibunkakumei – Tani Yuuki (Demo)](https://hit-masters.com/en/tracks/tani-yuuki-jibunkakumei-XzKqkBdtO_0)
- [最終想者 - Anchor – Tani Yuuki (Demo)](https://hit-masters.com/en/tracks/tani-yuuki-anchor-kXQUOEdissA)

## More by Tani Yuuki

- [もう一度 (album ver.) - Mouichido (album ver.) – Tani Yuuki (Platinum Record)](https://hit-masters.com/en/tracks/tani-yuuki-album-ver-mouichido-album-ver-uP8CtPMAd5Q)
- [運命 - Unmei – Tani Yuuki (B-Side)](https://hit-masters.com/en/tracks/tani-yuuki-unmei-yXG8qtd_Qag)
- [Cheers – Tani Yuuki (B-Side)](https://hit-masters.com/en/tracks/tani-yuuki-cheers-d7VPpilCFyE)
- [夢喰 - Baku – Tani Yuuki (B-Side)](https://hit-masters.com/en/tracks/tani-yuuki-baku-nudN_HNS8Ls)
- [自分自信 - Jibunjishin – Tani Yuuki (B-Side)](https://hit-masters.com/en/tracks/tani-yuuki-jibunjishin-YaA7CiqpaLE)
- [もしものがたり - Moshimonogatari – Tani Yuuki (B-Side)](https://hit-masters.com/en/tracks/tani-yuuki-moshimonogatari-hPJD9O3ZRbk)
- [笑い話 - Waraibanashi – Tani Yuuki (B-Side)](https://hit-masters.com/en/tracks/tani-yuuki-waraibanashi-PAmTT9qUl50)
- [ワンダーランド - Wonderland – Tani Yuuki (B-Side)](https://hit-masters.com/en/tracks/tani-yuuki-wonderland-QsJJTkTMi_o)

## Other songs certified B-Side

- [Softly, As I Leave You – Frank Sinatra (B-Side)](https://hit-masters.com/en/tracks/frank-sinatra-softly-as-i-leave-you-meopd48_XqA)
- [Circles (Anniversary Edition) (feat. Gabrielle Aplin) – Passenger (B-Side)](https://hit-masters.com/en/tracks/passenger-circles-anniversary-edition-feat-gabrielle-aplin-Y6EJnsdCt5s)
- [Ostatnia runda – Cooks (B-Side)](https://hit-masters.com/en/tracks/cooks-ostatnia-runda-Od450N5oauM)
- [My Life Interlude – Mary J. Blige (B-Side)](https://hit-masters.com/en/tracks/mary-j-blige-my-life-interlude-EMZtbIlrPG0)
- [Sinterklaas Kapoentje – Minidisco (B-Side)](https://hit-masters.com/en/tracks/minidisco-sinterklaas-kapoentje-zXnvgEGsOho)
- [PA MAMI – T.Y.S (B-Side)](https://hit-masters.com/en/tracks/t-y-s-pa-mami-xu3vS1zNITk)

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Songs, cover art and plays: YouTube Music. HitMasters, the music trading card game.