[There is the sound of footsteps - certainly not calm, but not fast enough to be running.  The echoes suggest perhaps that it's in a stairwell.  The voice is mumbling, with a tone that approximately reflects the footsteps.  He really doesn't realize that it's recording - he's mostly just thinking aloud.]

Judai's dead, alongside that Johan guy... so much for his being the great protector, huh.  Kaiser's dead - with some guy I don't know, but I remember he came to that place that time, so he must be someone he knew.  Fubuki-senpai's dead - never thought I'd see anyone dead twice, but I never thought half of what happened in my life would ever happen either, and look at all of that.

And... both of the Asukas are dead, too...

[The footprints slow down for a brief moment, but then they speed up again to somewhat faster than before.]

I'm sorry I couldn't keep my promise to protect her - I wasn't even there in time to try...

I'm sorry I couldn't retrieve the key in time - that bastard's going to destroy my world now, isn't he.  And I can't do anything to stop it - if anything, I perpetuated it.

I'm...

...fine, no one's around, I can say it.

I'm sorry I threw the three of you away.  I'm sorry I can't apologize in person.  I'm sorry I'll never be able to say goodbye to all of you at the very least.

[The footsteps pause momentarily to allow for the sound of the creak of a door opening - when the footsteps resume, they are slow, deliberate, and not echoey so much as they sound as though they're on concrete or something outdoors.  Now the voice is loud, confident, and almost taunting.]

Entropi, or whatever the hell you are!  I won't give you the pleasure of hunting me out!  Here I am - come and hit me with everything you've got!

[And, a few moments later, the recording zaps into static.  Apparently, the Entropi did just that.]