Kiwamu-san has recently posted links to Hayato and Dora's(BLOOD) respective Ameba accounts.
Hayato-
BLOOD / Hayato Official Blog
Dora-
BLOOD Dora official blog「Dえもんの独り言｡｡｡」Powered by Ameba
Also, HearJapan has a Misaruka song available for free, plus an article about them:
HearJapan | Misaruka Are Ready
HearJapan | Misaruka - Merrow
Please check them out!!