[Shuichi takes them back with a soft word of thanks. He did drop those, thank you for picking them up. He's a little uncomfortable with the idea of bending down in his current attire...]

Ah...well...yes. But I know it wasn't you...and it has nothing to do with diamonds...

[Kokichi, you should KNOW what he's investigating...you should be investigating the same thing? Or at least looking into it, if not truly investigating.]

[Now that he's actually looking at Kokichi properly, though...]

...Your clothes changed to a dress as soon as you came in here too?

[It wasn't just him!? He knows Kaede's changed into a similarly fashioned dress as well but...she's a girl. It's not weird for her to be in a dress. There was still a chance that he was some kind of bizarre, embarrassing exception. But if Kokichi is ALSO wearing a dress...]