And then he deliberately takes as long as possible to spite her. Or at least he considers it, even if he doesn't follow through with the impulse and instead does his best to be quick. A speedy shower to wake up more and throwing on non school uniform clothes should give Minako plenty of time even so.

Aside from clothes and school supplies, he also has his violin, a sword, his laptop, random social link items (some of which she might recognize)... of course some of the items and things like his evoker and the bookmark and orb from Elizabeth are in his bedroom.

But either way in a short while he comes out hair still damp but otherwise ready to go. He still looks a bit sleepy but that might just be his default.