human
Subaru:  Even as Subaru glanced at the contradictory spectacle of a dead beast that didn’t know it was dead, he shamelessly ran, putting distance between them while he still could. His head was heavy; his whole body was sluggish. It was the aftereffect of using magical power without complete command of it, and thus burning excess amounts of mana.
gpt
Subaru:  “—Thanks a million, brats.” Subaru spat out the tiny remnants of the fruit’s skin still in his mouth as a small smile came over him.
human
Subaru:  Putting his back to the demon beast trapped in incomprehension, his feet took him in the direction the barrier ought to have been.
gpt
Subaru:  “—Ah?” But Subaru’s scheme was instantly foiled by a single claw that grazed the back of his left thigh. The sharp pain heralded the bleeding. Subaru let out an anguished groan as he fell to his knees.
human
Subaru:  "Damn it all…" Before his very eyes, he saw the gaping maw of the huge demon beast, open wide enough to swallow Subaru whole.
gpt
Subaru:  “Go to hell, why don’t you—? !” He yanked the sword out of the demon beast and plunged it into the creature’s mouth with all his might.
human
Subaru:  The fatal blow delivered to the inside of its mouth sent the demon beast roaring and flinging Subaru’s body away. Subaru tumbled across the ground, holding onto the sword, then held it before him as he looked up at the demon beast.
gpt
Subaru:  “Yeah! How’s that, sucker?! Bite on that! !” The demon beast shook its head, facing Subaru in a berserk rage.