The kid might be around half Shiro's height, and the young man blinked, looking down at him.

He can't be old enough for this, he started to think... and then checked himself, teeth lightly closing on the tip of his tongue. They didn't have time for age to matter.

"Let's coordinate," he advised, moving to give the boy-in-blue more space towards the bottom of the door, while he shifted his leverage to its top. "On three, okay? One... two... three!"