Auream Ruins

Yuuki and Sanji live in a world of unknown Ruins. Other human species exist and magic is very common. Suddenly, they hear something about a stray in the forest. Out of curiosity, they visit this stray and their lives will never be close to their former normal conditions. Well, as the saying goes, "Curiosity killed the cat". In this case, it killed the fox, wolf and cat!(Well, that's a maybe. Maybe it killed the fox,wolf and cat or maybe it didn't!)