[ It's interesting that Shuichi would ask him that! Not that Ouma's ever taken issue with being suspicious as hell (and even encourages the image), so he naturally doesn't think twice about lying: ]

Nee-heehee... Nope, I have nooo idea!

[ Ouma throws his hands behind his head with a grin, looking more amused in spite of acting like this is unknown territory. ]

But it's a pretty tacky looking key, huh? I can't think of many places it might match with...