This set includes the following DLC:
- Holo Core Voice: Security Chief Kasim Al-Fayed
- Holo Core Voice: Nina Fenly
- Holo Core Voice: Dominion Celis Ortesia
- Holo Core Voice: Towa Herschel
- Holo Core Voice: Mishy SiN

More details on the official game page of Trails through Daybreak II - Holo Core Voice Pack ...