The instinct to save Mari when he falls wars with his self-preservation and the fact it hurts to be landed on, and his self-preservation wins the battle.

He looks behind him at Mari, who looks thankfully unhurt and is holding a coconut.

All that effort, he thinks, for one coconut. They were doomed.

Knives were an impossibility. "Your nails? Fashion a twig into something you can slice it with. Throw it at a trunk?" Fire could be an option, but unless-

Kaoru sniffs the air. Unless the plane exploded ... "I smell smoke."