C109

"Key?"

Ye Cheng had an ignorant face. He did not know that a box without a key would actually have a key locked inside.

Wu liangzi rubbed his thumb over the handle of the key. After wiping off the rust on the surface, he saw that there was a pattern that he had never seen before.

"That's right, it's a key. A key that's as valuable as a city."

Wu liangzi nodded with satisfaction