Tracks
| # | Title | Sung by | |
|---|---|---|---|
| 1 | SMOOTH♡HEART | 柊木りお | 4:17 |
| 2 | SMOOTH♡HEART (ボカロ ver) | 柊木りお feat. 重音テト | 4:18 |
| 3 | SMOOTH♡HEART (カラオケver.) | 柊木りお | 4:17 |
| 4 | SMOOTH♡HEART (インスト ver.) | 柊木りお | 4:17 |
Member reviews
Source: MusicBrainz release group a76c68d8-ae61-43f6-bd1e-3750fd2e7a4c (CC0). Cover: Cover Art Archive.