"That eases my mind," Casio smiled.
He made a small request.
As an antiques enthusiast, isn't it normal to want to see the Antiques Department warehouse of the Black Spade Organization? To touch things that catch his fancy? To grow more and more fond of them as he does so, then go ahead and buy them at a certain price? All that should be quite within the bounds of reason, wouldn't you say?
As long as Casio becomes a senior level official of the Assassination Department, no one in the Antiques Department would make a fuss over these trivial matters. They might even praise his dedication and proactive approach to preventing theft in the warehouse.
"So, we're in agreement?" Casio extended his hand.
"We're in agreement!"
The two shook hands for the second time under the sunlight.