The criminal was brought to justice, and the centuries-old "treasure" was found, completing the commission satisfactorily. Kiyomi Liuli and Nanahara Takeshi returned home, one wrapped her head and began to do housework, while the other entered the kitchen to prepare dinner.
As Kiyomi Liuli dusted, she asked, "Did you already know the treasure was Shimane silver?"
Based on her understanding of Nanahara Takeshi, he likely guessed early on that the treasure wasn't the kind he preferred; otherwise, he wouldn't have taken the client directly to retrieve it. Even if he wasn't going to take it all for himself, he would have definitely sifted through it first, picking out the parts he liked.
That must be the case. He's exactly that kind of despicable, greedy bastard.