human
Subaru:  “Hah, hah…” And as he ran while holding Rem, he couldn’t help being struck by a nostalgic feeling. He had run around a forest being chased by demon beasts like this once before. But he had been carrying Ram in his arms that time, not Rem. “Big Sis doesn’t remember that, either…hah… I’m the only one who still remembers that one…”
gpt
Rem:  "You are breathing heavily. We’ll be caught at this rate.”
human
Subaru:  “I know! Both of you sisters…hah…no mercy at all…!” Even though he was carrying a different person, the commentary was just as scathing. Subaru pushed himself even as he grew breathless, running through the forest desperately while leaving Rem to watch their back. I’ve been running all over today. His body and mind were battered and worn out. He would have loved to just throw everything aside and take a nap if he could. If we shake off our pursuer, I definitely will. Eight straight hours, even. “I just gotta hold out until then…!”
gpt
Rem:  “…Ah, wait!”
human
Subaru:  “Ow, ow, ow, ow?! What? !” As he shouted encouragement to himself, Rem pulled his ear roughly. Grimacing in pain, Subaru saw Rem point in another direction.
gpt
Rem:  “I hear the sound of flowing water…a river? That would cover our tracks, no?”
human
Subaru:  “That would definitely help! If we can cross the river, it would make it harder to follow us…!” Unfortunately, between his hoarse breathing and the pulse hammering in his chest, Subaru couldn’t hear the sound of water, but he had no reason to doubt Rem’s hearing.
gpt
Rem:  “That way,” Rem said, pointing. Following her guidance, Subaru changed direction and rushed forward in search of a river. And as he broke through a cluster of trees and out into a clearing…
human
Subaru:  “It is a river! But…” As they made it out of the trees and the clearing spread out before him, Subaru could finally hear the tremendous crash of water, too—because it was a massive, rumbling river. Flowing about ten yards below them, over the side of a cliff. As if making a mockery of their idea to cover their tracks by crossing it.
gpt
Rem:  “This is too much…” Rem gulped, seeing the big river below them. Considering the raging torrent of water and how high up they were, her reaction was natural. And she seemed to be blaming herself for having led them here.
human
Subaru:  But there was no time for regret, or blame, or apologies. “Damn it—did they finish fighting? !” An awesome roar thundered deep in the jungle behind them. It sounded like the snake’s cry was filled with some sort of emotion. Whether it had experienced victory or defeat, the survivor of that battle was probably coming for them now. “Before that, we need to—”
gpt
Rem:  “—Leave me here.” Subaru was about to say it was time for them to hightail it out of there when Rem interrupted him. Subaru gasped at the tension in her voice.
human
Subaru:  “What?”
gpt
Rem:  “Please leave me here. It is my fault that we took an unnecessary diversion.