[Shiro says nothing and leans back in his chair, crossing his arms over his chest. The idea sounds crazy but this is the only lead he has so far. He'd be an idiot if he didn't at least find out more.]

...you said it would take a lot of explaining. Do you mind going into further detail?

[He adds, his voice a little softer.] If it will take a while you might want to sit down first.