human
Subaru:  The demon beast before his eyes was clearly not the little puppy-size one Subaru had expected. In addition, the timing with which it had showed itself meant that…
gpt
Subaru:  “…You used this girl as a decoy and waited for her to lure me out…?” Subaru shuddered. Perhaps it was only feral instincts at work, but the beast’s unexpected intelligence disturbed him. Either way, he didn’t have any time to ponder the matter. His eyes roamed the area, but he saw neither any sign of Rem catching up to him nor any avenue for escape from the demon beast. Indeed, the latter had already lowered its head, clawing the ground. He had no time to hesitate.
human
Subaru:  “Tch… Shit, if you’re gonna come, come! !” As Subaru vented, he stripped his jacket off, wrapping the well-tailored garment around his left arm. In a confrontation with a wild animal, the thing you had to worry about the most was its sharp fangs. Wrapping thick fabric around your arm to limit the damage was the least you could do against a four-legged beast. He’d remembered seeing police dog training on TV in his old world and instantly copied that. He thrust his left arm out, glaring at the demon beast as it tried to figure out when best to leap at him. The way the demon beast kept its center of gravity low, not moving a muscle, unnerved Subaru.
gpt
Subaru:  “Hey, what’s with the laid-back attitude here?! Hey! Come on! C—” It vanished. Suddenly, the demon beast that should have been right in front of him melted into the darkness. Fright froze his throat as an indistinct black cloud headed for Subaru’s outstretched left arm. The next moment, he felt sharp fangs punch through the thick fabric, with the demon beast biting deep into his flesh.
human
Subaru:  “That—!” In an instant, he felt a jabbing pain, intense enough to turn his vision red, slam directly into his nervous system. But…
gpt
Subaru:  “—Didn’t hurt! !” He poured strength into his left arm, tightening the muscles so that the fangs sunk into his muscles wouldn’t come out. As a result, the demon beast clamped on at an angle was now completely unable to move. Its two red eyes met Subaru’s gaze. Subaru bathed in the beast’s overwhelming enmity as he said,
human
Subaru:  “You bit me, you mangy mutt—!” Wrapping his whole left arm around the demon beast, Subaru whipped his body around, hard. Centrifugal force sent the demon beast floating into the air, spinning it backward toward the fallen tree—and slamming against an outstretched branch.
gpt
Subaru:  “—!” The sharp branch ruptured its hide, making a dull sound as it rent the beast’s flesh. Its dying howl echoed throughout the dark forest. The demon beast, impaled through its back, kept Subaru’s arm clamped in its maw for a while, but it finally relented as it stopped moving. Subaru, for his part, fell to his knees.