[ it's not as though yasusada isn't used to being chided or cared for -- the latter may be slightly questionable, but he does know concern and care when he hears it, which amounts to the same thing, really -- but it takes a moment for it to register on account of how tired he is, the dojo setting, and the fact that it's mitsutada and not, say, kashuu or okita-kun, directing that concern towards him. he's always found mitsutada to be a bit odd amongst the swords, in interest of full honesty. after all, he seemed happy while cooking and cleaning, which were very un-swordlike things to enjoy doing. his appearance was also incongruous with his personality. not in the dramatic sense that tsurumaru kuninaga gives off, but in a more 'well, i certainly didn't expect him to be such a mother' sort of way, because any younger sword looking at him would've assumed him to be stern and vicious when he really... isn't.

still, he's not entirely sure how to respond to mitsutada's words. he's not here to spar, but to check up on him: which is puzzling, because yasusada doesn't see any reason why anyone would need to check up on him. but since the sentiment is kind, he nods again in deference, taking his senpai's advice to heart (though it notably doesn't make it quite all the way up to his brain). ]

Understood, Mitsutada-san. Though I think my focus has been fine, and I am not the least bit stressed. [ he thinks. but now that you mention it... he frowns a little as he puts down his towel, and grabs a second one to drape over his neck to prevent him from losing heat. ]

What time is it?

[ how long has he spent at the dojo? he realizes that he didn't really keep track. ]