human
Subaru:  "It hurts, Mommy, Daddy, Emilia-tan…!” He invoked the three most important people in his life as he glanced at his dangling right arm. The intermittent numbness in his shoulder was from his crash landing after his blow to Rem’s horn. He hoped dearly it was merely dislocated. One way or another, he couldn’t rely on his right arm for combat. With one less weapon at his disposal, Subaru had no idea how he was going to face the enemy standing before him.
gpt
Subaru:  As Subaru ran, he found the demon beast pup standing in his path—the one that had been the bane of his existence more than once. Subaru wondered if it had a grudge against him to be so darned persistent. "I’d like this to be the last time we meet…” Subaru kept running as he girded himself for the cascade of stones the demon beast would surely unleash. If that hit him when his guard was down, there was no way he’d get away with just a dislocated shoulder. Shaking off the unpleasant image of being whittled to death by a thousand stone cuts, Subaru mentally simulated dodging at the exact moment the stones would be unleashed. He gave the demon beast a half-resentful, gimme-your-best-shot glare when—
human
Subaru:  “Uhh?” He suddenly sounded quite clueless. Subaru could scarcely believe his eyes at the scene unfolding before him. The demon beast pup made a small howl before curling up its little body further. It seemed to be gathering all its strength. Before Subaru, whose eyes were narrowed with no idea what was coming next, it…
gpt
Demon Beast Pup:  “—!” The fur ball suddenly grew with explosive force. Poof—in the blink of an eye, it grew from the size of a cute, huggable domesticated dog to something larger than the largest breeds, to the point one might call it jumbo sized.
human
Subaru:  “I’ve seen this in manga a lot, but seriously, where does all the extra mass come from? !”
gpt
Demon Beast:  The reply to his question was a howl that seemed to make the entire forest shudder. It used its hind legs for support as it vigorously sprang off the ground. The demon beast then struck together the claws of both its raised paws, revealing them to be sinister weapons that could slice through human bone with the slightest graze.
human
Subaru:  “Oh, so you’re not gonna settle this with magic? What did I ever do to you…?” Subaru shuddered at its decision to fight their final battle mano a mano as he looked around, searching for any avenue of escape—but demon beasts in pursuit were cutting off the back and the sides, making escape a difficult proposition. "Man, coming after me instead of the beautiful sisters… You guys have seriously demon-cursed taste… Damn it all!” Once he noticed it, his steps slowed as the beasts surrounded him. Apparently, Subaru had brought every demon beast in the whole forest running. His decoy operation was a huge success.