"They've been going at it all day...?" Hikari repeats, and her mind seems to go somewhere else with it.  If nothing else, it's a fun mental image to have of the two handsome brothers for the next time she's sitting in Sanro's class, staring at him for hours and hours.  Nisen seems to cook and clean, but even so he really looks like he'd be the one in charge of the pair--<br/><br/>"...  huahm?  Ah!  That's right, it's so late!  I'm going to fall asleep in class tomorrow and get in trouble again!"