human
Rem:  She had abilities above the norm. Her mana supply was strictly average, with her body’s capabilities in line with what a normal demon with only one horn could do. Compared to Ram, she did not have a shred of confidence; she cowered behind her sister’s back like a shadow. That was how the young Rem coped. That was how she protected her immature heart. It wasn’t that she was jealous of her older sister. She admired her. She adored her. It wasn’t that her parents hated her. They loved the younger as well as the older. It wasn’t as if their people had spurned Rem. Of course they had high hopes.
gpt
Rem:  She was her little sister. Her sister, kinder than anyone; her parents, full of expectations; all her kin, cheering her on to excel like her twin—these were the little cuts that chafed Rem. No doubt it was the direct consequence of her and her sister looking like two peas in a pod. Yet even though their heights and faces were identical, their qualities as demons were on completely different scales. Of course, Rem strived to change those circumstances. It may have been no more than shallow, clumsy trial-and-error efforts by a young child, but Rem tried any and every way of getting closer to her older sister, to beat her in even a single area. But Ram was simply better at everything.
human
Rem:  And so, Rem was still a young child when she learned that the sister to whom she was closest, the sister she loved more than anything, occupied an area that she could never, ever reach. She could never stand by her sister’s side. Ram would always walk ahead of her, bathed in the light of the world. Rem’s place was behind her sister, cowering behind her back, peeking out once in a while, only to shrink away from the dazzling light. Once she gave up, she could accept the sufferings of daily life, like a reed bending with the wind. —She wondered how long she would have to bear her own weak capitulation.