[No, it's not his responsibility, and Kainé catches herself and quickly sobers. She looks back when he starts talking again.]

No. Finding what I've lost is the only reason I'm doing the shit they brought us here for. Otherwise I couldn't give two fucks. I'm tired of that world and everyone in it. But if I have to save it in order to find what I'm missing, then it can wait just a little while longer to rot.

[Really, her world has done nothing but treat her awfully. She has no reason to save it; except this.]