The window opening without him at it shouldn’t surprise Hakuba anymore, but it does, if only just. Blinking, he glanced away from his paperwork to offer a smile to the thief, tired but genuine. 

“Ah, Kaitou-san… I suppose that is the case, but I always try to get a little more work in before bed and, ah, often lose track of the time.”

He laughed, despite himself. “What brings you here tonight, so late, hm?”