Konpeitō did not, in fact, laugh. He didn't get the joke at all and was thankful that Caissa explained what "Rule Forty-Four" was. That was something to look up later. With his confused expression covered by the mask, he simply nodded along.
That bit of embarrassment was overshadowed by his relief that this was one of the times where him being honest about his desire for money didn't get him bad looks or criticisms over being shallow. And then that relief was overshadowed by not getting whatever challenge Caissa thought best for him to deal with. "Sounds like I picked the best option," he muttered to himself.
"No, I think I have everything I need for now. If anything else comes up, I'll ask. We can set up another meeting as Takumi and Pollux or Betty Noire or whoever you want. But don't worry, I'll keep my lips shut about this whole meeting. I like not ruining my own life, thank you very much." He had an itching feeling that if he screwed Caissa over, or hell, if he screwed them both over, he would be the one in the most trouble.
That bit of embarrassment was overshadowed by his relief that this was one of the times where him being honest about his desire for money didn't get him bad looks or criticisms over being shallow. And then that relief was overshadowed by not getting whatever challenge Caissa thought best for him to deal with. "Sounds like I picked the best option," he muttered to himself.
"No, I think I have everything I need for now. If anything else comes up, I'll ask. We can set up another meeting as Takumi and Pollux or Betty Noire or whoever you want. But don't worry, I'll keep my lips shut about this whole meeting. I like not ruining my own life, thank you very much." He had an itching feeling that if he screwed Caissa over, or hell, if he screwed them both over, he would be the one in the most trouble.