Yosuga No Sora

Okukozome is a remote village far removed from the city. That is where Kasugano Haruka goes, taking Sora, his sister, with him. It is a place he had visited often in the past, the place where his grandfather had lived before passing away. Now, the two siblings have lost their parents and a place to call home. Thus, they decide to move into their grandfather's empty house.