Strange wanting to leave a light on while he stayed up late to do... whatever it is he's up to (wizard stuff, Tamaki supposes) doesn't bother Tamaki in the slightest; in fact, it honestly made everything easier. His time as ghost has made Tamaki a bit more openminded toward them, but he also remembers that for every nice or lonely ghost that just wanted someone to lend an ear, there were about five more out there that wanted to kill and maim to feel better for a moment about their own demise. And frankly, he doesn't want even the friendly ones sneaking up on him in the dark, even if he hasn't felt any particular presences here since they arrived.

However, when Tamaki rolls over in what has to be the very early morning now and blinks awake to some small sound, he's surprised to Strange is still up, leaned over some kind of basin full of... Tamaki has no idea. Magic juice? Wizard punch? Very mysterious, indeed.

"Ne, Merlin..." He sits up, rubbing the sleep out of his eyes and fending off a yawn. "Aren't you gonna sleep?"