Japanese box back A girl who gives her life for the people. A boy who risks his life for a girl. This is the start of the journey of sacrifice, that binds live together. The peace on the island had been kept with the ancient tradition to present a sacrifice to the monsters once every ten years. But now, the monsters have increased their numbers, not waiting for the sacrifice to happen. And so, Setsuna, the girl selected as the sacrifice, starts her journey together with her guards, towards the end of the world, where the sacrifice must take place.