You were a loyal customer in Sigma's Casino, he noticed this, of course. And that led you both to being friends somehow, I mean, he does love his customers afterall.

He planned to treat you later on, but another issue came to be reported to him.

While Sigma was in a hurry, you coincidentally bumped into him while he was rushing to get to the issue.

"ah.. I'm terribly sorry about that, I was in a hurry."