[wow... he actually hadn't expected this tactic to succeed, in all honesty, and he looks equally surprised for a fraction of a second. it's rare to see genuine emotion in Cain, he's beginning to realise (with the help of more aware people like Ciel, of course), and that kind of negativity is almost strange to see.

and then he looks miffed for a second because nobody insults his well-practiced skills as a musician, even if he also recognizes it for what it is. he scoffs quietly, straightening his posture again even though his hands remain clasped behind him.]

My playing is never anything less than perfection, which we both know. [SO... ARROGANT.... and then for something completely unexpected and not to be trusted:] If it's still a sore topic, I'll leave it be for now.