C407 This is my sister

"What?" I looked at Ouyang Nana for a while. She did not understand what Ouyang Nana meant either. Ouyang Nana was quiet for a while, then pulled me to a bench and said: "Gu Chen, I accidentally obtained a key from the Su Yang, it is the key to the treasure trove in London, only the key in my hand can open the treasure trove in this family."

"A while ago, when I was in the country