[He probably smells nasty and he's also sweaty and bloody, but he's not going to push Mandricardo away. His heart thuds in his chest, still running on the dregs of adrenaline and the unpleasantness of All Of This, but... he's quiet. For a few seconds, he doesn't say anything. Then, softly:]

...I didn't. [Hurt or kill him.] The situation was set up in a way that encouraged us to do so, but the second time we tried, we were able to do what we needed to without directly harming you three.

[Though he realizes that this will just sound more confusing out of context, and honestly - hilariously - the actual events aren't most of what he takes the biggest issue with. So, after a sigh:]

We were brought to another world and made to complete an objective. Steal an airship, get to the ruins. Any time we died in our attempts to do so, we were brought back to a moment slightly before our deaths. At the ruins, you and two of the others were there - holding hostages. People from our own worlds, I presume... I believe your objective was to kill them to protect your own loved ones.

[He says all of this very clinically, like he's reciting something he read somewhere else.

Can you believe a lad's self-hatred is so intense that he made it sound like he was the one who killed Mandricardo, absolutely hilarious.]