Yozora and man and woman is a photo of Anamidori author. This photo includes Ishigakijima Starry sky Okinawa star Night sky tags. To download photo (S, L, M sizes) you need to register the account and log in.
As the free account, you can download for free with some limits.
As the premium account, you can download unlimited, no waiting time, etc. Enjoin premium membership at here