Vocal card (Miku) is an item that is used to purchase alternative vocals at the song store. Vocal cards are obtained through character rank milestones or by exchanging a vocal card exchange ticket.
Currently, the vocal card can be exchanged for alternate vocals featuring Hatsune Miku in the following songs:
- Teo
- Keitai Renwa
- Roku-chou Nen to Ichiya Monogatari
- Nikkori^^ Chousatai no Theme
- Flyer!
- Lower
- Nomad
- Ego Rock
- Odore Orchestra
- Watashi wa, Watashi-tachi wa