[Keiwa doesn't know the finer details of the Yugi household, but it seemed natural to worry about family... Even if the person in question was the human equivalent of an outdoor cat]

Hmm... Maybe we can get him a sweet potato instead. That one you can split with him more easily-

[he freezes at Tsukasa points out, again, that Keiwa's not looking too hot]

Huh? What do you- Oh... [a sheepish look] It's just a headache... But is it that obvious?