human
Subaru:  Subaru looks at his arm, covered in a dense black pattern and touches it with his left hand. The right hand felt spongy and almost elastic to the touch, and his sense of touch in it was diminished. "...No, this is…" Subaru stuck the fingernails of his left hand deep into his black right hand, clawing at his skin.
gpt
Subaru:  "Ugh?!" Subaru pushed his finger into the place the chunk had fallen from and focused on peeling it away—until finally every black part, from his fingertips to his elbow, was gone, revealing a clean, good-as-new right arm.
human
Subaru:  "Wh-what the hell?!"
gpt
Subaru:  "Uwaaah?!" Subaru screamed from the shock of what had happened to his own body, and Utakata fell backward, surprised by his shout.
human
Subaru:  "Wh-wh-wh…what’s going on with my hand?! It…is my hand… right?" He checked cautiously, and his right hand moved without anything feeling off.
gpt
Subaru:  "Who tames what now?!"
human
Subaru:  "I thought I heard a voice. What are you going on about?" Subaru was panicking as he checked his healthy right arm.