In the novel it went like this:
Aria, who was sitting on her bed for a while, escaped from her room. In the dark dawn in which no one moved, her destination was the guest room on the second floor. When she opened the door of the sixth room, she found what she wanted. "... Who?!" Oscar, who was so surprised by someone's unexpected presence, suddenly rose. His upper body was stiff to a half-upright position, and he didn't even move at all. He wasn't moving at all as if time had stopped. It was because he was faced with a very unexpected person. It was Aria, and she was dressed in a light chemise dress because she came there soon after she woke up. Her arms, shoulders, and legs that were exposed without protection shone mysteriously in the moonlight. As she grew up from a girl to a woman, she stole Oscar's attention with the help of the moonlight. "Mr. Oscar...?"
Aria, who found Oscar, took a slow step toward his bed. A languid glance proved that she was less awake, but Oscar couldn't even think of stopping her from approaching him. He was already asking himself why she came to visit him at this hour. He tried to neglect and avoid her gaze on purpose. He had run away without telling her why. He thought his heart would burst if he had eye contact with her. As if to destroy his efforts, Aria came to him on her own. Aria, who came up to the edge of the bed and put her hand on a bright quilt, stopped moving. Her thin shoulders and her sad face soon crumbled. Oscar's heart was shaken because of the look on her face, which could not be compared to that of Mielle, who had cried bitterly after being insulted. "Please... please don't abandon me.." She had a hard time bringing out a very small voice and was crying a little. As soon as he was about to answer, she fell down on the bed. Oscar hurriedly reached for her body. She had been exposed to the night air, and as he touched her cold skin, he felt like someone stabbed him in the heart with a dagger. Because of the false rumor, she became sad, pathetic, and pitiful that there was nothing to love anymore. Because of the miserable reality, he couldn't easily convey his mind. 'But if I disobey my sister's words.." It wouldn't end just by grieving like this. It was clear that she would suffer so thoroughly that it would be useless to regret. So it was better now if he could hear the news about her even if he was very sick. Moreover, if he married Mielle, the connection of both families would continue and he would never lose his relationship. So he had to endure this pain now. Oscar closed his eyes tightly. Aria couldn't open her eyes until daybreak.