human
Subaru:  "!” The ground beneath his feet exploded, with the resulting cascade of rocks vaulting Subaru straight up. The scattering rocks pelted his body all over. Skin breaking and bleeding, Subaru looked down from midair to see the cause of his pain.
gpt
Subaru:  South of the point where the ground had exploded under Subaru, he saw the demon beast puppy in a low crouch. The Urugarum had kept a low profile since leading the pack down the cliff, waiting for its opportunity to take Subaru and Rem out in a single cascade of rocks. And so, seeing Subaru create an opening, it had spectacularly intervened with the goal of sending both him and Rem flying.
human
Rem:  “—! !” Rem roared and stomped onto the ground from which the rocks were erupting. Force canceled force, ending with only her blue hair heavily disheveled. She’d canceled out magical force with raw violence—smashing the spell with brute force. The cascade of rocks ceased, and Rem’s shoulders eased as she held her big sister preciously in her arms. Subaru, still above her, had vanished from even the furthermost reaches of her mind.
gpt
Subaru:  Buffeted by the magic spell, Subaru whirled head over heels with no idea which way was up. But his right hand kept the sword firmly in its grip even then; fortunately, he landed not against the rock wall but merely on the hard ground. And Rem stood right below him, her head exposed, not noticing him whatsoever. There would be no better chance, nor no chance after. It was now or never. He gripped the single-handed sword’s hilt with both hands and swung with all his might.
human
Subaru:  He had arrived at this point at the end of a long string of coincidences. Opportunism for the win. Miracles were awesome. Even if purely by whim, sometimes God did good work—although God’s work would also have helped tremendously with the previous attempt. And now he was right above Rem, unnoticed, her head fully exposed… He made a strained smile. There was no time. Rem was close at hand, and so was a slow, leisurely world with her. He saw the horn. He swung the sword past its apex with all the energy he could muster.
gpt
Subaru:  "Laugh, Rem. Today, I’m more demonic than any demon!” The blade flashed straight down, aimed at the white horn—