Well, he'd never heard of that before. But given the things he'd actually done, he supposed it wasn't impossible. But he simply met Tsukasa's glare with an expression of flippant distaste.

"One's own 'mind' is a fine line." ...Though he, suddenly looked like this definitely wasn't a topic he wanted to or was going to talk about. "Are you trying to suggest you have someone else's right now? Or are you putting too much weight into matter over mind?"