Final Fantasy: The Descent

When I woke up, I found that the whole world had changed. Humanity had vanished thousands of years ago. Now this continent is ruled by a group of magical beastfolk, and as the only human still alive in the world, I have to tread carefully to survive. To recover my memories, I disguise myself as a beastfolk and begin studying magic and history. To find out why humanity disappeared, I start learning how to explore ruins. As I decipher one ruin after another, I slowly begin to feel that something is… off.