Tsukiuta. Duet Series (Nencho Gumi 1) Hajime Mutsuki & Haru Yayoi: Koiwasuregusa
| Composed by | Machigerita |
| Published by | MOVIC |
| Catalog number | TKUT-0024 |
| Release type | Game Soundtrack - Official Release |
| Format | 1 CD - 3 tracks |
| Release date | January 24, 2014 |
| Duration | 00:22:02 |
| Genres |
| 1 | 恋忘れ草 | 03:56 | |
| 2 | ミニドラマ「はじめまして編」 | 14:10 | |
| 3 | 恋忘れ草 (オフボーカル) | 03:56 |
