[ In a weird way, Atsumu does appreciate it. Though it's not like he ever really wanted to get dragged into an assassination plot, if one was going to happen he'd be a lot saltier if he was taken unaware by the whole thing. Amos really is doing him a favor by letting him know, and not necessarily expecting him to help out.

Atsumu will. He wants to keep his friend safe too, but it's nice to have the option if nothing else.

So he nods, fully in agreement with the assessment that it was the least Amos could do for him. People have a funny way of demanding Atsumu expect the full consequences any adult would have to suffer for the simple choice of "picking the wrong side", and then proceed to talk to him like he's a child. While he's rattled by this whole sudden escalation that will be happening, he does genuinely appreciate Amos' decision to not treat him that way though, even if he doesn't know how to properly express it right now.

So he makes an attempt to look less put out by this whole thing. There was some visible relaxing on his part at the mention of Gavial anyway, having already had her save him once. ]

If she's gonna be helpin' out, then I'm definitely gonna be just fine then. Couldn't ask for more of a powerhouse than her. So you just focus on what you gotta do for it, man, and let us take care of the rest.

[ Ironically Atsumu will end up not liking how people opt to take care of the rest. ]