Salaryman ga Isekai ni Ittara Shitennou ni Natta Hanashi - Vol. 2 Ch. 17 - The Qualities of a First-Class Merchant

[MangaDex]

 

[radstylix]

For a "smart" merchant, he's really dumb because it's super obvious who's been selling the stolen gems to the king.
EDIT: Ugh, there has got to be a good reason to save that lil piggy. I guess he has connection and does have some skill...