Aiyoku no Eustia -Original CharacterSong Series- St.IRENE, LAVRIA/LICIA [Limited Edition]
![Aiyoku no Eustia -Original CharacterSong Series- St.IRENE, LAVRIA/LICIA [Limited Edition]. Front. Click to zoom.](/static/covers_soundtracks/2/5/256617_716664.jpg "Aiyoku no Eustia -Original CharacterSong Series- St.IRENE, LAVRIA/LICIA [Limited Edition]. Front. Click to zoom.")
| Composed by | Misaki Nakajima / Ryota Fujii |
| Arranged by | Misaki Nakajima / Ryota Fujii |
| Published by | Side Connection Music |
| Catalog number | SCMN-010B |
| Release type | Game Soundtrack - Promo / Enclosure |
| Format | 1 CD - 6 tracks |
| Release date | April 27, 2012 |
| Duration | 00:31:23 |
| Genres |
| 1 | HIKARIのノクターン | 04:33 | |
| 2 | Buds Crown | 05:55 | |
| 3 | HIKARIのノクターン（Off Vocal） | 04:32 | |
| 4 | Buds Crown（Off Vocal） | 05:56 | |
| 5 | HIKARIのノクターン -philia instrumental- | 04:33 | |
| 6 | Buds Crown -dolce instrumental- | 05:54 |
