[He'll die if he doesn't do this - that's how Akechi convinces himself to not smack at the arms around his body.

A living heater is just that. Eren is obligated to keep allies alive. Akechi needs to live, so-

It makes sense. Rational. Logical. He looks up to see the red marks splay under Eren's eyes, feel the pulsing mild heat that keeps his blood circulating. It's nice. He hates this.]

I suppose that's true. [He blinks the snow out of his eyes - no sense in moving his hands to wipe at it and ruin this delicate temperature balance happening between flesh and fabric.] You've been training since your youth, haven't you? I recall you being young when the whole ordeal began. It must have been taxing to go through it all at such an age, but if there's no choice, well-

[It doesn't matter.]

What would you have done, if the world hadn't condemned you to a life of military service and bloodshed?