He could meet Yukihina in the doorway, then? And stop him from getting lost, yes? (lol, Yukihina haven't even bothered, actually. He don't even care that he's ended up in another world)

Code:Breaker is an awesome manga-soon-to-be-anime.
And yes, that, and the fact they have such different personalities made me want to have them switch.

Yukihina also don't have to eat or sleep. He drink alcohol anyway, tho.