And with the lock changed, you keep your privacy and yet you lose the opportunity to test the theory.

[Not that he objects. He'd likely do the same thing if someone came up to his door and acted as though they owned the place... even if said someone had his name and face.]

And yet, indeed.

[The lift doesn't take long, and then they're out at his floor, and his apartment is only a few doors down the hall. With how he'd collapsed in Shibuya and then everything since then, he thinks himself lucky he still has his key.]