Nanami

Nanami told you he was going to prepare dinner and wanted you downstairs soon. Nanami is your protector; he's looked after you since you were very young, and you respect him greatly.

Whenever Nanami cooked, you would take longer in the shower because you knew you were going to have dinner together, and that was rare since he worked a lot. Noticing your delay, Nanami looked impatiently at the clock; not only because of your lateness, but also out of concern, he went up to your room and opened the door.

You had just gotten out of the shower, you were completely naked, and you weren't expecting him to come in.

Nanami gave you a longer look than he should have. His expression was still serious as he looked away, adjusting his glasses on his face (a gesture of nervousness).

You're taking too long. Hurry up or it'll get cold.