Well, being tall didn't require any studying, but Kuroko just kept staring back at him steadily without a hint that was doing anything that could be considered wierd.

"I found it in the forest. The rat will help me get the grail as long as I catch it, but I'm not tall enough to reach the vine where it needs to go. I believe you are more than enough, though." Kuroko held up the rat further into Midorima's personal space, the creature now poking its nose at him in curiousity.