Since new demo version was posted for last month, those who not supported last month need to purchase the back number.
The back issue can be purchased from the bottom of the demo version post (The article itself can be accessed from the link above)
(English) What do you want in GH2's "New Costume for Airi" or "New Player Character"?
1. Airi's completely new costume (determined to some extent based on questionnaires)
2. GH1 Airi's clothes (Airi's face is for GH2)
3. GH1 school uniform costume (Airi's hairstyle and hair color will be decided by questionnaire.)
4. Naked Airi (looks the same as the current heavenly stage, but supports all actions. The clothes are damaged by the enemy's attack and become naked Airi. (It will not be damaged in stages))
5. Noir
6. Eleanore
7. VIVI (Either GH1 costume or female doctor costume will be decided by another questionnaire.)
8. Malm
9. Blanc
10. No need for new costumes or new characters! (Make more or finish faster with the current clothes)