C437 I'll Do It Myself
In fact, the backyard was not only used to store miscellaneous items, it was also used to place the servants in the store. If Boss Lee and Quini had an exchange, Quini would definitely send someone to assist Boss Lee and leave some clues in the backyard.
Or else, even if they found out that they had seen those strange scimitars before, it could be considered a kind of discovery
