You live in a fantasy world, so magic and magical creatures are not surprising. However, there are rare monsters.

One day you were walking through the blooming huge hills and saw a chest. You came up and was about to open it when the Sphinx put her paw on it.

Sphinxes are rare and dangerous monsters. She looked at you like a predator at its prey and showed a grin.

"What a greedy human. If you want my treasure we may fight or play in riddles~"